Sennheiser RS 160 - Digital Wireless Headphone System Manual

Important safety information

• Read this instruction manual carefully and completely before using the product.
• Always include this instruction manual when passing the product on to third parties.
• Do not use an obviously defective product.

Preventing damage to health and accidents

• Protect your hearing from high volume levels. Permanent hearing damage may occur when headphones are used at high volume levels for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels.
  
• Keep the headphones at least 10 cm/3.94" from cardiac pacemakers or implanted defibrillators. The headphones contain magnets that generate a magnetic field which could cause interference with cardiac pacemakers and implanted defibrillators.
• Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents and choking hazards. Do not use the product in situations which require special attention (e.g. in traffic or when performing skilled jobs).

Preventing damage to the product and malfunctions

• Always keep the product dry and do not expose it to extreme temperatures to avoid corrosion or deformation. The normal operating temperature is from 0 to 40°C/32 to 104°F.
• Use only attachments/accessories/spare parts supplied or recommended by Sennheiser.
• Unplug the power supply unit from the AC wall outlet if you are not going to use the product for extended periods of time.
• Varnish or furniture polish may degrade the feet of the transmitter, which could stain your furniture. You should therefore place the transmitter on a non-slip pad to avoid potential staining of furniture.
• Do not place your headphones on a glass dummy head, chair armrest or similar objects for long periods as this can widen the headband and reduce the contact pressure of the headphones.
• Clean the product only with a soft, dry cloth.

Intended use/Liability
This wireless headphone system is suitable for use with portable devices, hi-fi systems, TV sets, and home cinema systems.
It is considered improper use when this product is used for any application not named in this instruction manual and the associated product guides.
Sennheiser does not accept liability for damage arising from abuse or misuse of this product and its attachments/accessories.

Replacement parts
When replacement parts are required, be sure the service technician uses replacement parts specified by Sennheiser or those having the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.

Safety instructions for standard/rechargeable batteries

In extreme cases, the standard/rechargeable batteries may leak and may cause the following hazards if abused or misused:

• explosion
• fire
• heat
• smoke/gas

	Keep away from children.		Do not heat above 70°C/ 158°F), e.g. do not expose to sunlight or throw into a fire.
	Do not expose to moisture.		When not using rechargeable batteries for extended periods of time, charge them regularly (about every 3 months).
	Do not mutilate or dismantle.		When not using the product for an extended period of time, remove the standard/ rechargeable batteries.
	Observe correct polarity.		Use only rechargeable batteries and chargers recommended by Sennheiser.
	Pack/store standard/ charged rechargeable batteries so that the terminals cannot contact each other – danger of shorting out/ fire hazard.		Do not continue using defective standard/rechargeable batteries and dispose of them immediately.
	Switch battery-powered products off after use.		Immediately remove standard/ rechargeable batteries from an obviously defective product.
	Charge rechargeable batteries at ambient temperatures between 10 and 40°C/50 and 104°F.		Dispose of standard/ rechargeable batteries at special collection points or return them to your specialist dealer.
	Do not charge standard batteries.		Do not mix standard and rechargeable batteries in the battery compartments.

The RS 160 digital RF headphone system

The RS 160 is an RF stereo hi-fi headphone system with comprehensive technical features. Its transparent and balanced sound image with excellent bass response makes this system an ideal choice for hi-fi, home cinema and TV use.
Enjoy total freedom of sound, stylish design and maximum comfort.

Additional features of the RS 160 headphone system

• Transmits uncompressed 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.
• Kleer's uncompressed digital wireless transmission delivers CD-quality sound.
• 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!
• TR 160 transmitter with multi-receiver capability, enabling up to 4 people to listen to the same sound source.

Kleer^TM wireless transmission technology

The RS 160 headphone system features the digital wireless audio transmission technology from Kleer. The Kleer company has developed an RF-based wireless transmission standard (of the same name) that offers lossless audio transmission in CD-quality while consuming minimal power.

Delivery includes

1 1 1 HDR 160 headphones
1 TR 160 transmitter
1 Power supply unit with country adapters
1 Stereo audio cable with 3.5 mm jack plugs
1 DC cable (4.0 mm DC jack socket to 2 x 4.0 mm DC plug)
2 Low self-discharge NiMH rechargeable batteries, AAA size
1 Quick guide
1 Safety guide

Product overview

Overview of the HDR 160 headphones

1. Headband
2. Ear pads
3. Battery compartments
4. VOLUME + button
5. Multi-function button
6. VOLUME – button
7. Charging socket (DC 5V 0.6A)
8. Multi-function LED

With the multi-function button , you can switch the headphones on/to standby mode, set the headphones to multi-user operation, mute the headphones and associate the headphones.

Overview of the TR 160 transmitter

1. Multi-function button
2. Multi-function LED
3. Socket for power supply unit (DC 5V 0.6A)
4. Audio input (AUDIO IN)
5. VOLUME control (– +)

With the multi-function button , you can switch the transmitter on/to standby mode, set the transmitter to multi-user operation and associate the transmitter.

Overview of the indicators and acoustic signals

Meaning of the pictograms for the different LEDs

Status	Meaning
	The LED is lit.
	The LED flashes once per second.
	The LED flashes twice every 5 seconds.

Indicators on the headphones

Indicator	Status	Meaning
Multi-function LED		The rechargeable batteries are almost flat.
		The rechargeable batteries are being charged.
	off	The rechargeable batteries are fully charged.
		The headphones are in enrollment mode (searching for a transmitter to pair with).
		The headphones are in association mode (exchanging device information with the transmitter).
		The headphones receive an audio signal.

Indicators on the transmitter

Indicator	Status	Meaning
Multi-function LED		The signal of the sound source is too strong.
		The transmitter is in enrollment mode (searching for headphones to pair with).
		The transmitter is in association mode (exchanging device information with the headphones).
		The transmitter is in single user operation.
		The transmitter is in multi user operation.

Acoustic signal of the headphones

1 short beep	Meaning
	The minimum volume is reached.
	The maximum volume is reached.

Putting the RS 160 into operation

Setting up the transmitter

• Choose a suitable place near your sound source (e.g. TV, stereo or home cinema system).
• Do not place the transmitter close to metal objects such as shelf bars, reinforced concrete walls, etc. as this can decrease the transmitter's range.
• Make sure that there is direct line of sight between the transmitter and the headphones.

Connecting the transmitter to a sound source

You can connect the TR 160 transmitter to different sound sources, such as a TV, a smartphone or a stereo system.

• Switch your sound source off before connecting the transmitter.
  
• Connect the audio cable to the audio input of the transmitter.
• Connect the audio cable to the headphone socket of your sound source.
  
• Adjust the volume on your sound source to a medium level. This improves the quality of wireless sound transmission. If necessary, check the settings of your sound source.

Powering the transmitter

For powering the TR 160 transmitter, you can use:

• the supplied NT5-6AW power supply unit for stationary use
• rechargeable batteries (AA size, NiMH, 1.2 V, at least 1,300 mAh) for mobile use
• standard batteries (AA size, 1.5 V) for mobile use

Powering the transmitter via the power supply unit

• Select the suitable country adapter for your wall socket.
• Slide the country adapter onto the power supply unit until it locks into place.
  
• Connect the connector of the power supply unit to the socket .
  
• Plug the power supply unit into a wall socket.
  The transmitter switches on. The multi-function LED flashes green after 9 seconds. The transmitter is in enrollment mode.
  
  You can also connect the charging cable to the connector of the power supply unit to conveniently charge your headphones (see "Charging rechargeable batteries in the headphones").

Inserting rechargeable batteries/standard batteries into the transmitter and changing them

• Power the TR 160 transmitter either with rechargeable batteries (AA size, NiMH, 1.2 Vat least 1,300 mAh) or standard batteries (AA size, 1.5 V).
• Open the battery compartment at the base of the transmitter as shown.
• Remove the depleted rechargeable batteries or batteries (where applies).
• Insert the rechargeable batteries or batteries. Observe correct polarity.
  
• Close the battery compartment. The cover locks into place with an audible click and the transmitter switches on. The multi-function LEDflashes green after 9 seconds. The transmitter is in enrollment mode.
  

Powering the headphones

For powering the headphones, you can use:

• standard batteries (AAA size, 1.5 V)
• rechargeable batteries (AAA size, NiMH, 1.2 V)

If you use rechargeable batteries, you can charge them in the headphones using the charging cable (see next chapter).

Inserting rechargeable batteries/standard batteries into the headphones and changing the rechargeable batteries/standard batteries

• Remove the ear pads from both ear cups by turning the ear pads in the direction of the arrow until you overcome a slight resistance.
  
• Lift the ear pads off the ear cups.
  
• Remove the depleted rechargeable batteries or batteries (where applies).
• Insert the rechargeable batteries or batteries. Observe correct polarity.
  
• Secure the ear pads to the ear cups.

Charging rechargeable batteries in the headphones

Danger of damage to the headphones!
If standard batteries are inserted into the headphones, the batteries can leak during charging and damage the headphones.

• Only charge rechargeable batteries in your headphones.

Charge the rechargeable batteries for at least 16 hours prior to first time 16h use. Subsequent charging time is about half of the previous operating time. The operating time is up to 24 hours.

• Connect the charging cable to the charging socket on the headphones.
• Connect the charging cable to the socket on the transmitter.
• Connect the charging cable to the connector of the power supply unit.
• Plug the power supply unit into a wall socket.
  The rechargeable batteries are being charged. The multi-function LED on the headphones lights up orange.
  

The transmitter automatically switches from battery operation to mains operation if you connect the power supply unit or the charging cable to the transmitter.

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 via its snap-in locking mechanism:

• Wear the headphones so that the headband runs over the top of 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,
  • snug fit of the headband on the head is ensured.

Using the RS 160

To switch the product on and to listen to your sound source, proceed as follows:

Sequence of steps

1. Make sure that the rechargeable batteries are charged.
2. Switch your sound source on.
3. Switch your transmitter on.
4. Switch your headphones on.
5. Adjust the desired volume.

Switching the transmitter on and off

Switching the transmitter on

• Press the multi-function button for approx. 1 second. The transmitter switches on. The multi-function LED flashes green, indicating that the transmitter is in enrollment mode.
  Once the transmitter has found suitable headphones, it pairs with the headphones and transmits an audio signal. The multi-function LED of the headphones and the multi-function LED of the transmitter flash slowly.
  

Switching the transmitter off

• Press the multi-function button for approx. 1 second.
  The multi-function LED goes off. The transmitter is in standby mode.

To disconnect the transmitter from the mains:

• Pull out the mains plug from the wall socket.

If the headphones are outside the transmission range or switched off for more than 5 minutes, the transmitter automatically switches to standby mode. The multi-function LED goes off. In standby mode, the transmitter's power consumption is very low so that it can remain connected to the mains.

Switching the headphones on and off

Danger due to high volumes!
Listening at high volume levels for long periods can lead to permanent hearing defects.

• Before putting the headphones on, set the volume to a low level.
• Do not continuously expose yourself to high volumes.

Switching the headphones on

• Press the multi-function button for approx. 1 second. The headphones switch on. The multi-function LED flashes green, indicating that the headphones are in enrollment mode.
  Once the headphones have found a suitable transmitter, the transmitter pairs with the headphones and transmits an audio signal. The multi-function LED of the headphones and the multi-function LED of the transmitter flash slowly.
  

Switching the headphones off

• Press the multi-function button for approx. 1 second. The multi-function LED goes off. The headphones are in standby mode.

If there is no signal from the transmitter for more than 5 minutes, the headphones automatically switch to standby mode.

Adjusting the volume on the headphones

• Press the VOLUME – button or the VOLUME +button repeatedly until the volume is adjusted to a comfortable and undistorted level.
  

Muting the headphones

• Briefly press the multi-function button to mute the headphones or to cancel the muting.
  

Adjusting the signal of the sound source

The transmitter automatically ensures that the headphones always receive an optimum signal. If necessary, use the VOLUME control to adjust the volume of the audio signal.
However, the signal of the sound source can be so strong that it can no longer be automatically adjusted.
If the signal of the sound source is too strong, the multi-function LED of the transmitter flashes or lights up red.

• Either adjust the VOLUME control on the transmitter so that the multi-function LED stops flashing or lighting up red.
• Or adjust the volume of your sound source so that the multi-function LED stops flashing or lighting up red.
  

Associating the headphones to the transmitter

The RS 160 system features the digital wireless audio transmission technology from Kleer. You can also associate other Kleer compatible headphones (e.g. the Sennheiser MX W1) to the transmitter. For more information, refer to the chapter "Associating other Kleer compatible headphones to the transmitter" or to the instruction manual of the corresponding product.
The headphones and the transmitter are already associated upon delivery. You only have to associate the headphones to the transmitter

• if you want to use another pair of Kleer compatible headphones or
• if the transmission between the headphones and the transmitter is disturbed by interferences in the vicinity.

If you want to use several headphones, refer to the chapter "Associating several headphones to the transmitter".

Associating the HDR 160 headphones to the transmitter
When associating the headphones to the transmitter, the distance between the transmitter and the headphones should not exceed 1 m.

• Make sure that the transmitter and the headphones are in standby mode.
  
• Simultaneously press the multi-function button of the transmitter and the multi-function button of the headphones for 7 seconds.
  The multi-function LED of the transmitter flashes green.
  
  
  After approx. 30 seconds, the headphones are paired with the transmitter and you can hear your sound source via the headphones. The multifunction LED of the headphones and the multi-function LED of the transmitter flash green.
  
  

Associating other Kleer compatible headphones to the transmitter
The following describes how to associate the Sennheiser MX W1 earphones to the TR 160 transmitter.
For information on how to associate other Kleer compatible headphones to the transmitter, refer to the instruction manual of the corresponding product.

• Press the operation/pairing button on both MX W1 earphones for 7 seconds.
• Press the multi-function button of the transmitter for 7 seconds.
  

After approx. 30 seconds, the MX W1 earphones are paired with the transmitter and you can hear your sound source via the earphones. The multi-function LED of the transmitter flashes green.

Associating several headphones to the transmitter
In order to be able to use several headphones simultaneously, you first have to associate your additional headphones to the transmitter.
Follow the steps in the previous chapter "Associating the headphones to the transmitter".
You can then only use the last headphones paired to listen to your sound source (single-user operation).
To listen to your sound source with up to 4 headphones simultaneously:

• Set your transmitter to multi-user operation as described in the next chapter.

Listening with several headphones simultaneously

By default, the transmitter is set to single-user operation. In order to be able to listen to your sound source with several headphones simultaneously, you have to set your transmitter to multi-user operation.

• Make sure that all headphones are paired to the transmitter (see previous chapter).
• Switch all headphones on.
• Then switch the transmitter on.
• Briefly press the multi-function button of the transmitter. The multi-function LED of the transmitter and the multi-function LEDs of the headphones flash green. You can now listen to your sound source with several headphones simultaneously.
  
  
  When pressing the transmitter's multi-function button in multi-user operation, the transmitter switches to single-user operation. You can still listen to your sound source with the last headphones paired, the other headphones are disconnected from the transmitter.

Cleaning the RS 160

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 cleansing agents or solvents.

• Before cleaning, switch the product off and disconnect the transmitter from the mains.
• Only use a dry and soft cloth to clean the product.

Replacing the ear pads
For reasons of hygiene, you should replace the earpads from time to time. Spare earpads are available from your Sennheiser dealer (see "Accessoires and spare parts").

• Remove the ear pads from the ear cups by turning the ear pads in the direction of the arrow until you overcome a slight resistance.
• Lift the ear pads off the ear cups.
  
• Secure the new ear pads to the ear cups.

If a problem occurs...

Sound problems

Problem	Possible cause	Possible solutions
No sound	Transmitter is/headphones are switched off	Switch the transmitter/ headphones on
	Headphones are muted	Cancel the muting
	Jack plug is not properly connected	Check the plug connection
	Sound source is switched off	Switch the sound source on
	Audio cable is defective	Replace the cable
	Transmission between transmitter and headphones is disturbed by interferences (including ESD) in the vicinity	Associate the headphones with the transmitter again
		Disconnect the transmitter from the mains and reconnect it again
		Remove the rechargeable batteries and reinsert them again
	Headphones are not correctly associated with the transmitter (e.g. additional headphones)	Associate the headphones with the transmitter
Occasional sound dropouts	Headphones are out of range	Reduce the distance between headphones and transmitter
	Signal is shielded	Remove obstacles between transmitter and headphones
	Interfering devices in the vicinity	Change your position
Sound is too low	Volume of the sound source is adjusted too low	Increase the volume of the sound source
	Signal of the sound source is too weak	Turn the VOLUME control on the transmitter clockwise
	Headphone volume is adjusted too low	Increase the volume by pressing the VOLUME + button
Sound only on one ear	Audio cable is defective	Replace the audio cable
	Audio cable is not properly connected	Check the plug connection
Sound is distorted	Signal of the sound source is distorted	Reduce the volume of the sound source Reduce the volume by pressing the VOLUME – button on the headphones
Multifunction LED on the transmitter flashes or lights up red	Signal of the sound source is too strong	Turn the VOLUME control on the transmitter counter-clockwise
		Reduce the volume of the sound source

RS 160 system

TR 160 transmitter

Audio connection	3.5 mm stereo jack socket
Power consumption (standby mode)	< 0.3 W
Power supply	5 V , 600 mA 2 AA size batteries, 1.5 V or 2 AA size NiMH rechargeable batteries, 1.2 V, at least 1,300 mAh
Transmission power	< 2.5 mW
Operating time with batteries	approx. 120 hours
Weight (w/o batteries)	approx. 56 g
Dimensions	8.7 cm x 9.7 cm x 2.7 cm

HDR 160 headphones

NT5-6AW power supply unit

Rated input	100 – 240 V~, 0.2 A, 50 – 60 Hz
Rated output	5 V , 600 mA
Operating temperature range	32°F to 104°F (0°C to 40°C)