Sennheiser RS 125 User Manual
Wireless Listening Pleasure
RS 125
Instruction manual
I
1
4
5
25
23
II
6
A
0
B
7
ON/OFF
8
CHARGE
9
Contents
Contents
Important safety instructions ................................................ 2
The RS 125 RF headphone system ........................................ 4
Delivery includes ...................................................................... 4
Product overview ..................................................................... 5
Overview of the headphones ................................................ 5
Overview of the transmitter ................................................. 5
Overview of the indicators and acoustic signals ............... 6
Putting the RS 125 system into operation ........................... 7
Setting up the transmitter .................................................... 7
Connecting the transmitter to a sound source ................. 8
Connecting the transmitter to the mains ........................... 9
Inserting and changing the headphones’ rechargeable
batteries .................................................................................... 9
Charging the headphones’ rechargeable batteries ........ 10
Adjusting the headband of the headphones ................... 11
Using the RS 125 system ...................................................... 12
Switching the transmitter on and off ............................... 12
Switching the headphones on and off .............................. 13
Searching for a sound source .............................................. 14
Changing the transmission channel .................................. 15
Adjusting the volume ........................................................... 15
Switching the acoustic signals (beeps) on and off ........ 16
Cleaning the RS 125 system ................................................. 17
If a problem occurs ... ............................................................ 18
Accessories and spare parts ................................................. 20
Specifications .......................................................................... 20
Manufacturer declarations ................................................... 22
Index ........................................................................................ 23
1
Important safety instructions
Important safety instructions
• Read this instruction manual.
• Keep this instruction manual for future reference. Always include this
instruction manual when passing the devices on to third parties.
• Clean the devices and the mains unit only with a dry cloth.
• WARNING: To reduce the risk of fire or electric shock, do not expose the
devices and the mains unit to rain or moisture.
• Only use the supplied mains unit.
• Disconnect the mains connector from the wall socket
– to completely disconnect the devices from the mains,
– during lightning storms or when unused for long periods of time.
• Ensure that the mains unit is
– always readily operable and easily accessible,
– properly plugged into the wall socket,
– only operated within the permissible temperature range (see
“Specifications” on page 20),
– not covered or exposed to direct sunlight for longer periods of time in
order to prevent heat accumulation.
Intended use of the devices
Intended use includes:
• having read this instruction manual, especially the chapter “Important
safety instructions”,
• using the devices within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the devices other than as described in this
instructions, or under operating conditions which differ from those
described herein.
2
Important safety instructions
Safety instructions for NiMH rechargeable batteries
If abused or misused, rechargeable batteries may leak. In extreme cases,
they may even present:
• a heat hazard,
• a fire hazard,
• a leakage 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.
Observe correct
polarity.
Do not expose to
moisture.
Do not pack charged
batteries loose – danger
of shorting out / fire
hazard.
Do not continue to use
defective rechargeable
batteries.
Do not mutilate or
dismantle.
Immediately remove
rechargeable batteries
from obviously defective devices.
Only charge rechargeable batteries with the appropriate
Sennheiser chargers.
Only use original Sennheiser
rechargeable batteries.
Do not short-circuit.
Switch rechargeable batterypowered devices off after use.
When not using rechargeable
batteries for extended periods
of time, charge them regularly
(about every three months).
Do not heat above 70°C/158°F,
e.g. do not expose to sunlight or
throw into a fire.
Only charge rechargeable
batteries at ambient temperatures between 10°C and 40°C.
Dispose of rechargeable batteries
at special collection points or
return them to your specialist
dealer.
3
The RS 125 RF headphone system
The RS 125 RF headphone system
The RS 125 RF stereo hi-fi headphone system offers excellent
sound quality and allows for wireless listening everywhere
in the house and garden. The lightweight headphones are
extremely comfortable to wear and very easy to use.
The volume can easily be adjusted to individual needs. Enjoy a
completely unrestricted listening experience without disturbing others.
Delivery includes
1 HDR 125 headphones
1 TR 125 transmitter with connection cable
2 AAA size NiMH rechargeable batteries, 1.2 V
1 NT-RS 100 mains unit
1 adapter 3.5 mm to ¼“ (6.3 mm) jack socket
1 instruction manual
4
Product overview
I
II
Product overview
An overview of the headphones and the transmitter is given
on the inside front cover of this instruction manual.
Overview of the headphones
1 Headband
2 Volume control (VOLUME)
3 Channel search button (TUNE)
4 ON/OFF switch
5 Earpad
Overview of the transmitter
6 Charging cradle
7 Operation indicator, green
8 Charging indicator, red
9 Channel selector switch
0 Connection cable
A Adapter for connection cable
B Connector of mains unit
5
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