RS 220
Digital wireless
system
Instruction manual
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Important safety information
Important safety information
̈ Please read this instruction manual carefully and completely before
using the product.
̈ Make this instruction manual easily accessible to all users at all times.
Always include this instruction manual when passing the product on to
third parties.
RS 220
Manual
www
̈ This instruction manual is also available on the Internet at
Preventing health problems
̈ Before using the product, set the volume to a low level. To protect your
hearing, avoid listening at high volume levels for long periods of time.
̈ Do not use the product in situations which require special attention
(e.g. in traffic or when performing skilled jobs).
The product generates stronger permanent magnetic fields that could
cause interference with cardiac pacemakers and implanted defibrillators
(ICDs).
̈ Always maintain a distance of at least 3.94” (10 cm) between the ear
piece housing and the cardiac pacemaker or implanted defibrillator.
Preventing damage to the product
̈ Always keep the product dry and do not expose it to extreme temper-
atures (normal operating temperatures: 5°C/41°F to 40°C/104°F).
̈ Use the product with care and store it in a clean, dust-free environ-
ment. Varnish or furniture polish may degrade the feet of the trans-
mitter, which could stain your furniture. You should therefore place the
transmitter on a non-slip pad to avoid potential staining of furniture.
̈ Switch the headphones off after use to conserve battery power.
Remove the batteries if the headphones will not be used for extended
periods of time.
Preventing damage to the power supply unit
̈ To reduce the risk of fire or electric shock, do not expose the product to
rain or moisture.
̈ Unplug the mains unit from the wall socket to completely disconnect
the product from the mains, during lightning storms or when unused
for long periods of time.
̈ Only operate the mains unit from the type of power source specified in
the chapter “Specifications”.
̈ To prevent heat accumulation, always ensure that the mains unit is in
a safe operating condition and easily accessible, properly plugged into
the wall socket and not covered or exposed to direct sunlight for longer
periods of time.
̈ Only use the power supply units, charging cables and accessories
recommended by Sennheiser. An overview can be found on
2 | RS 220
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Important safety information
Intended use
Intended use of the product includes
•
having read this instruction manual, especially the chapter “Important
safety information”,
•
using the product within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the product other than as described in this
instruction manual, or under operating conditions which differ from those
described herein.
Safety instructions for the NiMH rechargeable batteries
If abused or misused, the rechargeable batteries may leak. In extreme
cases, they may even present
•
•
•
•
a heat hazard,
a fire hazard,
an explosion hazard,
a smoke or gas hazard.
Please understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
Keep away from
children.
Only charge the rechargeable
batteries in the headphones
(see page 14).
Observe correct
polarity.
Pack/store charged batteries
so that the terminals cannot
contact each other – danger
of shorting out/fire hazard.
Do not expose to
moisture.
Switch rechargeable battery-
powered products off after use.
Only charge recharge-
able batteries at
ambient temperatures
between 10°C/50°F
and 40°C/104°F.
When not using rechargeable
batteries for extended periods
of time, charge them regularly
(about every 3 months).
Do not mutilate or
dismantle.
Do not heat above 70°C/158°F,
e.g. do not expose to sunlight
or throw into a fire.
Immediately remove
rechargeable batteries
from an obviously
defective product.
Do not continue to use defec-
tive rechargeable batteries.
Only use rechargeable
batteries specified by
Sennheiser.
Dispose of rechargeable bat-
teries at special collection
points or return it to your
specialist dealer.
RS 220 | 3
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The RS 220 digital RF headphone system
The RS 220 digital RF headphone system
Experience audiophile sound quality with the RS 220 digital wireless head-
phone system. Consisting of a transmitter and open, circum-aural head-
phones, the system offers uncompressed music enjoyment – just like
wired high-end headphones.
The rechargeable batteries can conveniently be recharged while in the
headphones. Enjoy total freedom of sound, stylish design and maximum
comfort.
Additional features of the RS 220 RF headphone system
•
•
•
Transmits uncompressed CD-quality audio over a robust 2.4 GHz digital
link, enabling you to enjoy your music without the hassles of cables.
Dynamic transducer systems with powerful neodymium magnets
deliver clear and detailed audio reproduction.
No set-up required – just plug and play. Simply connect the transmitter
to your personal audio/video player, put on the headphones and turn
it on.
•
•
•
Up to four persons can listen simultaneously with optional headphones
and a single TR 220 transmitter.
Signals can be looped through so that the transmitter can be inte-
grated into an existing connection between 2 devices
Universal connections:
– 1 analog input and output
– 1 coaxial digital input and output
– 1 optical digital input and output
4 | RS 220
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Delivery includes
Delivery includes
HDR 220 headphones
TR 220 transmitter
Power supply unit with country adapters
Stereo audio cable with dual RCA plugs on each end
Coaxial cable with a single RCA plug on each end –
for digital connections
Audio adapter
(3.5 mm jack plug to 2 RCA sockets)
Rechargeable batteries, HR03, AAA size, NiMH
RS 220
Digital wireless
system
Quick Guide incl. CD ROM
with detailed instruction manual (PDF file)
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
Quick Guide
RS 220
Digital wireless
system
Safety Guide
Safety Guide
Sicherheitshinweise
Consignes de sécurité
Indicazioni di sicurezza
Indicaciones de seguridad Instruções de segurança
Instruções de segurança Veiligheidsvoorschriften
A list of accessories can be found on the RS 220 product page
RS 220 | 5
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Product overview
Product overview
Overview of the headphones
1
2
2
4
3
3
0
5
9
6
8
7
1 Headband
6 Balance button
for changing between
Volume/Balance
2 Charging contacts
3 Battery compartments
4 Ear pads
7 Volume –/R button
8 On/Off button
9 Power LED
5 Volume +/L button
0 Input button
for selecting the audio source
6 | RS 220
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Product overview
Overview of the transmitter
A
I
COAXIAL
N
OUT
Pairing
B
C
OPTICAL
H
G
F
DIGITAL
-LEVEL
J
D
E
A Charging contacts for charging F Power touch key
the headphones
G ON LED
B ANALOG LED
H Battery LED
C COAXIAL LED
I Pairing button
D OPTICAL LED
J LEVEL control dial
E Touch key for selecting the
audio source
Overview of the transmitter’s connections
·
´
»
²
³
IN
OUT
R
COAXIAL
9V/1A
DC IN
Pairing
IN
OUT
L
OPTICAL
ANALOOGG
DIGITAL
-LEVEL
¿
¶
³ DC IN socket for power supply unit
Inputs
Outputs
´ ANALOG OUT (analog)
· ANALOG IN (analog)
» COAXIAL IN (digital coaxial)
¿ OPTICAL IN (digital optical)
² COAXIAL OUT (digital coaxial)
¶ OPTICAL OUT (digital optical)
RS 220 | 7
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Product overview
Overview of the indicators
Indicators on the headphones
Indicator
Status
Meaning
lights up blue The headphones have found a suit-
able transmitter.
flashes blue
The headphones haven’t found a
suitable transmitter.
flashes
The headphones are in pairing mode.
alternately
blue and red
flashes red
The rechargeable batteries are
almost flat.
9
off
The headphones are switched off.
Indicators on the transmitter
Indicator
Status
Meaning
lights up green The transmitter has found suitable
headphones.
flashes green The transmitter hasn’t found suit-
able headphones.
lights up red
The transmitter is in loop through
mode (i.e. a digital signal can be
looped through to connected
devices).
B
C
H
G
D
off
The transmitter is in standby mode.
lights up red
The rechargeable batteries are being
charged.
off
The rechargeable batteries are fully
charged.
been selected.
8 | RS 220
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Putting the RS 220 into operation
Putting the RS 220 into operation
Setting up the transmitter
̈ Choose a suitable place near your audio source (e.g. TV, stereo or home
cinema system). Avoid placing the transmitter close to metal objects
such as shelf bars, reinforced concrete walls, etc. as this can decrease
the transmitter’s range.
It is not necessary that the transmitter and headphones are in the
same room, so you can move around freely in the home or outside in
the garden.
RS 220 | 9
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Putting the RS 220 into operation
Connecting the transmitter to audio sources
You can connect up to 3 audio sources (e.g. CD player, DVD player and TV)
to the transmitter. The transmitter is fitted with 2 digital and 1 analog
inputs and outputs. If you connect several audio sources, you can conve-
niently toggle between these audio sources with a key press (see
page 21).
̈ Switch your audio source off before connecting the transmitter.
̈ Check the available connection possibilities of your audio source.
̈ Select the corresponding connection cable and, if necessary, a suitable
adapter.
Connection possibilities (output) of
the audio source
Connection cable/adapter
RCA (analog)
Stereo audio cable with dual
RCA plugs on each end
L
R
SCART (analog)
Stereo audio cable with audio
adapter (to be ordered sepa-
rately)
B
Headphone socket
(analog)
Stereo audio cable with audio
adapter
C
Coaxial (digital)
Coaxial cable with a single RCA
plug on each end
D
Optical (digital)
Optical digital cable (to be
ordered separately)
E
̈ Follow the instructions in the corresponding chapter in order to connect
your transmitter to the audio source.
Connecting the transmitter to RCA sockets
A
·
OUT
R
L
IN
OUT
R
R
COAXIAL
OPTICAL
V/1A
DC IN
Pairing
IN
OUT
L
L
-LEVEL
ANALOG
DIGITAL
K
̈ Connect the RCA plugs of the stereo audio cable K to the corre-
sponding RCA sockets of your audio source.
̈ Connect the RCA plugs of the stereo audio cable K to the left (“L”) and
right (“R”) ANALOG IN input ·.
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Putting the RS 220 into operation
Connecting the transmitter to a SCART socket
B
·
IN
OUT
R
R
COAXIAL
OPTICAL
V/1A
DC IN
Pairing
IN
OUT
L
L
ANALOG
DIGITAL
-LEVEL
K
̈ Connect the RCA plugs of the stereo audio cable K to the corre-
sponding RCA sockets of the SCART adapter.
̈ Connect the SCART adapter to the SCART socket of your audio source.
̈ Connect the RCA plugs of the stereo audio cable K to the left (“L”) and
right (“R”) ANALOG IN input ·.
A suitable SCART adapter is available from your specialist dealer.
Connecting the transmitter to a headphone socket
C
·
IN
OUT
L
R
R
COAXIAL
OPTICAL
V/1A
DC IN
Pairing
IN
OUT
L
L
ANALOG
DIGITAL
-LEVEL
K
̈ Connect the RCA plugs of the stereo audio cable K to the corre-
sponding RCA sockets of the audio adapter L.
̈ Connect the audio adapter L to the headphone socket of your audio
source.
̈ Connect the RCA plugs of the stereo audio cable K to the left (“L”) and
RS 220 | 11
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Putting the RS 220 into operation
Connecting the transmitter to a coaxial digital output
D
»
IN
OUT
R
R
L
COAXIAL
OPTICAL
9V/1A
Pairing
OUT
IN
M
DC IN
ANALOG
IGITAL
-LEVEL
̈ Connect the RCA plug of the coaxial cable M to the RCA socket (digital
output) of your audio source.
Connecting the transmitter to an optical digital output
E
IN
OUT
R
L
COAXIAL
OPTICAL
9V/1A
DC IN
Pairing
IN
OUT
-LEVEL
ANALOG
DIGITAL
N
¿
̈ Connect the connector of the optical digital cable N to an optical digital
output of your audio source.
̈ Connect the connector of the optical digital cable N to the
A suitable optical cable is available from your specialist dealer.
12 | RS 220
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Putting the RS 220 into operation
Integrating the transmitter into an existing connection between devices
You can integrate the transmitter into an existing connection between
your audio source and an additional device. By way of example of an ampli-
fier as an additional device, this chapter describes how to integrate the
transmitter into an existing connection.
̈ Pull out the plug of the audio cable from the desired input (“IN”) on the
amplifier.
IN
OUT
R
L
COAXIAL
OPTICAL
5V/1A
DC IN
IN
OUT
Pairing
ANALOG
DIGITAL
LEVEL
̈ Connect this plug to a suitable input (“IN”) on the transmitter (see
IN
OUT
R
L
COAXIAL
OPTICAL
5V/1A
DC IN
IN
OUT
Pairing
ANALOG
DIGITAL
-LEVEL
̈ Connect an additional identical audio cable to the output (“OUT”) on
the transmitter and to the input (“IN”) on the amplifier.
IN
OUT
R
L
COAXIAL
OPTICAL
5V/1A
DC IN
Pairing
IN
OUT
ANALOG
DIGITAL
LEVEL
To keep the digital connection up even when the transmitter is switched
off:
The analog connection (RCA/SCART/headphone socket) is kept up
when you disconnect the transmitter from the mains.
The digital connection (coaxial/optical) is interrupted in this case.
RS 220 | 13
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Putting the RS 220 into operation
Connecting the transmitter to the mains
AU/CN
UK
P
O
EU
US
³
IN
OUT
R
L
COAXIAL
OPTICAL
9V/1A
DC IN
IN
OUT
Pairing
ANALOG
DIGITAL
-LEVEL
P
̈ Select a suitable country adapter O for your wall socket.
̈ Slide the country adapter O onto the power supply unit P until it locks
into place.
̈ Connect the connector of the power supply unit to the socket ³.
̈ Plug the power supply unit P into a wall socket.
light up green.
Charging the rechargeable batteries inside the
headphones
Before using the headphones for the first time, remove the protection strip
from the rechargeable batteries and charge the rechargeable batteries for
optimum operation.
Removing the protection strip
̈ Tilt the ear cup slightly inwards.
̈ Pull the protection strip from the battery compartment.
3
14 | RS 220
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Putting the RS 220 into operation
Charging the rechargeable batteries inside the headphones
Charge the rechargeable batteries for at least 16 hours prior to first time
use. The operating time is up to 8 hours.
16h
A
H
up red.
goes off.
Always store the headphones on the headphone holder to ensure
that they are fully charged when they are needed. The battery
charging technology prevents over-charging.
Adjusting the headband of the headphones
For good sound quality and best possible comfort, the headband has to be
adjusted to properly fit your head. To do so, adjust the headband 1 via its
snap-in locking mechanism:
̈ Wear the headphones so that the headband 1 runs over the top of
1
your head.
̈ Adjust the length of the headband so that
– your ears are completely inside the earpads,
– you feel even, gentle pressure around your ears,
– a snug fit of the headband 1 on the head is ensured.
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Using the RS 220
Switching the loop through mode on/off
In loop through mode, the signals are looped through from one device to
another, even when the transmitter is switched off.
To switch the loop through mode on:
is in loop through mode.
To switch the loop through mode off:
standby mode.
B
C
D
E
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Using the RS 220
Switching the transmitter off
All LEDs go off. The transmitter is
When the transmitter is switched on the next time, it selects the last set
input.
F
To disconnect the transmitter from the mains:
̈ Pull out the mains plug from the wall socket.
The transmitter is reset to the factory default settings. Please note
that In this case, the headphones’ rechargeable batteries will not be
recharged.
18 | RS 220
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Using the RS 220
Selecting an audio source or toggling between audio
sources
You can connect different audio sources to the transmitter. Once you have
connected an audio source, you then have to select the audio source.
If you have connected different audio sources to the transmitter, you can
toggle between the audio sources:
E
0
Press the buttons repeatedly until
Selected input (“IN”)
one of the following displays lights up on the transmitter
ANALOG IN ·
Analog
COAXIAL IN »
Coaxial
OPTICAL IN ¿
Optical
The selected input (“IN”) on the transmitter is retained in memory when
the transmitter is switched off.
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Using the RS 220
Adjusting the volume on the headphones
edly until the volume is adjusted to a comfortable level.
7
5
Vol -
Vol +
Vol -
Vol +
When the minimum or maximum volume is reached, you hear a beep in the
headphones.
Adjusting the balance
The balance button allows for left/right volume adjustment. To adjust the
volume for your left (L) or right (R) ear:
To adjust the same volume for both ears:
5
6
7
If you don’t press the Volume +/L button 5 or the Volume –/R
RS 220 | 23
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Using the RS 220
Associating a second pair of headphones to the
transmitter
The headphones and the transmitter are already associated upon delivery.
If you want to use a second pair of headphones, you have to associate it to
the transmitter.
When associating the headphones to the transmitter, the distance
between the transmitter and the headphones should not exceed 1 m.
headphones on.
the new headphones flashes.
2 seconds, the headphones are paired with the transmitter and you can
9
8
I
IN
OUT
R
L
COAXIAL
OPTICAL
5V/1A
DC IN
Pairing
OUT
IN
ANALOG
DIGITAL
-LL
The volume and the balance of the each pair of headphones can be
adjusted individually.
24 | RS 220
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Cleaning and maintaining the RS 220
Cleaning and maintaining the RS 220
CAUTION
Liquids can damage the electronics of the product!
Liquids entering the housing of the product can cause a short-circuit and
damage the electronics.
̈ Keep all liquids far away from the product.
̈ Do not use any solvents or cleansing agents.
CAUTION
Microfiber cloths can damage the surface of the product!
If you clean the product with a microfiber cloth, dust particles can scratch
the surface.
̈ Carefully dust the product without exerting pressure.
̈ Before cleaning, switch the headphones off and disconnect the trans-
mitter from the mains.
̈ Only use a lint-free, slightly humid cloth to clean the product.
̈ Clean the charging contacts from time to time using e.g. an eraser.
Changing the rechargeable batteries of the headphones
For powering the headphones, you can use rechargeable batteries (HR03,
AAA size, NiMH, 1.2 V) or standard batteries (AAA size, 1.5 V).
̈ Remove the depeleted rechargeable batteries/standard batteries
(where applies).
̈ Insert the rechargeable batteries/standard batteries. Observe correct
polarity when inserting the batteries.
The battery compartment cover locks into place with an audible click.
3
3
RS 220 | 25
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Cleaning and maintaining the RS 220
Replacing the ear pads
For reasons of hygiene, you should replace the ear pads from time to time.
Spare ear pads are available from your Sennheiser dealer.
4
4
cups.
with an audible click.
26 | RS 220
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If a problem occurs ...
If a problem occurs ...
Sound problems
Problem
Possible cause
Possible solutions Page
No sound
Transmitter is/headphones Switch the trans-
are switched off
mitter/head-
phones on
Plug is not properly
connected
Check the plug
connection
–
Audio source is switched off Switch the audio
source on
Audio source is not con-
nected to the selected
connection
Select a different
audio source
Audio cable is defective
Replace the cable
or select a dif-
ferent connection
–
Occasional
sound
dropouts
Headphones are out of
range
Reduce the dis-
tance between
headphones and
transmitter
Sound is too Signal of the audio source is Increase the
–
low
too weak
volume of the
audio source
turned too far in the –
direction
Turn the LEVEL
the + direction
Sound is too Signal of the audio source is Reduce the signal
distorted
too strong
level by means of
the LEVEL control
dial J
turned too far in the +
direction
Turn the LEVEL
the – direction
Sound only
on one ear
The balance is misadjusted Adjust the balance
Audio cable is defective Replace the cable
–
1 RCA plug of the audio con- Check the plug
nection cable is not properly connection
connected
RS 220 | 27
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If a problem occurs ...
Other problems
Problem
Possible cause
Possible solution Page
The trans-
mitter
cannot be
switched on
No mains connection
Check the connec-
tion of the power
supply unit to the
transmitter and to
the mains
Headphones Rechargeable batteries are Recharge the
cannot be
switched on
flat
rechargeable
batteries
Rechargeable batteries are Remove the
inserted the wrong way
round
rechargeable bat-
teries and observe
correct polarity
Headphones Function is disturbed
and/or trans-
mitter do not
Reset: Pull out the
mains plug from
the transmitter,
remove the
react to any
key press
rechargeable
batteries from
the headphones
for 30s
Headphones Headphones do not make
Ensure that the
headphones are
properly seated
on the charging
contacts
cannot be
recharged
contact to the charging
contacts
Clean the charging
contacts
flashes
continuously
an unused frequency
mitter in a dif-
ferent location
If necessary,
switch off a
product operating
on Bluetooth or
WLAN
–
If a problem occurs that is not listed in the above table or if the problem
cannot be solved with the proposed solutions, please contact your local
Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at
28 | RS 220
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Specifications
Specifications
RS 220 system
Modulation
digital, 16-bit, 48 kHz
2400 to 2483.5 MHz
2412 MHz; 2438 MHz; 2464 MHz
3
Frequency range
Frequencies
Number of radio channels
AF frequency response
Signal-to-noise ratio
Operating temperature range
Storage temperature range
16 Hz to 22 kHz
typ. 90 dB
0°C to 40°C
–10°C to +70°C
TR 220 transmitter
Radiated RF power
Power supply
10 mW
PSM11R-090 power supply unit
9 V , 1.1 A
Power consumption
standby mode: typ. 0.30 W
loop through mode: typ. 0.84 W
switched on: typ. 2.2 W
analog: RCA
Connections
digital coaxial: RCA
digital optical: TORX/TOTX
Input sensitivity (analog)
of the sockets
0.6 V
to 5 V
rms
rms
Weight
approx. 484 g
HDR 220 headphones
Transducer principle
Max. SPL at 1 kHz
dynamic, open
106 dB (1 kHz, 1 V
)
rms
THD
typ. < 0.1% (1 kHz, 100 dB SPL)
Power supply
2 NiMH-rechargeable batteries
(HR03, type AAA, 1.2 V)
Charging time
Operating time
approx. 16 hours
approx. 6 to 8 hours
Weight incl. rechargeable batteries approx. 329 g
PSM11R-090 power supply unit
Rated input
100 – 240 V~, 0.3 A, 50 – 60 Hz
Rated output
9 V , 1.1 A
0°C to +40°C
Operating temperature range
RS 220 | 29
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Manufacturer declarations
Manufacturer declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this
product. For the current warranty conditions, please visit our website at
In compliance with the following requirements
•
•
•
RoHS Directive (2002/95/EC)
WEEE Directive (2002/96/EC)
Battery Directive (2006/66/EC)
CE Declaration of Conformity
•
•
•
•
R&TTE Directive (1999/5/EC)
EMC Directive (2004/108/EC)
Low Voltage Directive (2006/95/EC)
ErP Directive (2009/125/EC)
product into operation, please observe the respective country-specific
regulations!
Rechargeable batteries
The supplied rechargeable batteries can be recycled. Please dispose of
them as special waste or return them to your specialist dealer. In order to
protect the environment, only dispose of exhausted batteries.
WEEE Declaration
Your Sennheiser product was developed and manufactured with high-
quality materials and components which can be recycled and/or reused.
This symbol indicates that electrical and electronic equipment must be
disposed of separately from normal waste at the end of its operational
lifetime.
Please dispose of this product by taking it to your local collection point or
recycling centre for such equipment. This will help to protect the environ-
ment in which we all live.
30 | RS 220
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Manufacturer declarations
In compliance with:
Country
Certification Mark / Number
Headphone
Transmitter
FCC ID: DMORS220T
IC: 2099A-RS220T
USA
FCC ID: DMORS220H
IC: 2099A-RS220H
Canada
Europe
Japan
R
201 WW 11215100
R
201 WW 11215099
Australia/
New Zealand
Singapore
Taiwan
CCAI11LP0940T2
CCAI11LP0930T9
China
Korea
CMIIT ID: 2011DJ2907
CMIIT ID: 2011DJ2906
15
15
KCC–CRM–SE9–HDR220
KCC–CRM–SE9–TR220
Statements regarding FCC and Industry Canada
FCC Declaration of Conformity (DoC)
SENNHEISER
Model No: RS 220
We,
Sennheiser Electronic Corporation
One Enterprise Drive • Old Lyme •
CT 06371 • USA
Tel: +1 (860) 434 9190, ext. 144
Fax: +1 (860) 434 1759
declare the above device comply with the requirements of Federal Communications Commission.
This device complies with Part 15 of the FCC rules. Operation is subjected to the following two conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may cause undesired operation.
Responsible Party: John Falcone
This device complies with Part 15 of the FCC rules and RSS-210 of Industry
Canada. Operation is subjected to the following two conditions: 1) This
device may not cause harmful interference, and 2) This device must accept
any interference received, including interference that may cause undesired
operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a partic-
ular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interfer-
ence by one or more of the following measures:
RS 220 | 31
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Manufacturer declarations
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Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
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Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications made to this equipment not expressly approved
by Sennheiser electronic Corp. may void FCC authorization to operate this
equipment. This Class B digital apparatus complies with Canadian ICES-003.
RF Radiation Exposure Information
Since the radiated output power of this device is far below the FCC radio
frequency exposure limits, it is not subjected to routine RF exposure eval-
uation as per Section 2.1093 of the FCC rules. This device complies with the
US and Industry Canada portable device RF exposure limits set forth for an
uncontrolled environment and is safe for intended operation as described
in the user manual. Further RF exposure reduction can be achieved if the
device can be kept as far as possible from the user’s body or set to lower
output power if such provision is available. The base portion of this device
should be installed and operated at least 20 cm away from the user’s body.
Use of other accessories not verified by the manufacturer may not ensure
compliance with FCC and Industry Canada RF exposure guidelines. This
transmitter must not be co-located or operated in conjunction with any
other antenna or transmitter.
Industry Canada statement
This device complies with RSS-210 of Industry Canada. Operation is sub-
jected to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
32 | RS 220
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Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
Publ. 02/12, 542639/A03
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