Sennheiser RS 120 II
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Sennheiser RS 120 II


Sennheiser RS 120 II. Specialized wireless headphones. Sennheiser RS 120 II. Listen to your favorite music wirelessly, from up to 300 feet away. This RF transmitter and rechargeable wireless headphone reproduces rich sound from almost any source and features auto on/off.

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The lightweight Sennheiser RS 120 II wireless headphones lets you enjoy freedom of movement without cumbersome cables. The headphones come complete with an easy-to-use recharging system. After use, simply place the headphones onto their convenient transmitter base station and they will automatically recharge for the next use. Its easy to set them up too! Just plug the transmitter in, and connect the audio cable to an analog output (RCA or headphone plug), its that simple.


The transmitter also features a convenient automatic on/off circuit: when you activate your audio source, the transmitter powers on without switches or buttons…easy! Five minutes after your turn off your audio source, the transmitter shuts off to conserve power.


The three position channel selector of the Sennheiser RS 120 II headphones allows you to choose an interference-free channel for clear reception— even through walls and ceilings.



  • Wireless freedom and stereo sound with reception through walls and ceilings up to 328 feet
  • Simple, built-in recharging
  • Detailed, warm sound reproduction with strong bass response
  • Open-Aire design for hi-fidelity audio reproduction
  • Volume, on/off and tuning control located on the headphone
  • Very lightweight headphones are comfortable to wear for long periods of time
  • Replaceable earpads for long service life
  • Charging stand also stores the headphones when not in use
  • Transmitter can be wall-mounted
  • Supports the use of multiple headphones receiving the RF signal from one transmitter (use HDR 120)
  • Delivery includes transmitter, power cable, audio cable and headphones
  • Connects to RCA jacks (red and white outputs), 1/8″ and 1/4″ headphone sockets (anything with a headphone jack including laptop and desktop computers!)
  • 3 selectable transmit-channels for avoiding interference and/or using more than 1 transmitter in a room
  • (2) AAA NiMH rechargeable batteries included
  • Compatible with set-top DVD & Blu-Ray players, DVR’s, satellite receivers, a/v receivers, laptops, mac/PC, MP3 players, LCD, Plasma and standard televisions that feature RCA outputs (red and white outputs) and/or 1/8″ and 1/4″ headphone sockets

Additional information

Weight 2 kg


TR 120 transmitter (audio cable is attached)

Transmitter power cable (in a small white box- its there, trust us)

(2) AAA NiMH rechargeable batteries

RCA to 1/8″ audio adapter

1/8″ to 1/4″ audio adapter

Instructions for use



Ear coupling: Supraaural

Transducer principle: Open, Dynamic

Frequency response 22 – 19500 Hz

THD, total harmonic distortion < 0.7 %

Signal-to-noise ratio > 65 dBA

SPL for peak deviation 106 dB





Modulation FM stereo

Operating time 20 h.

Power supply Receiver: 2 AAA cells-rechargeable

Power supply Transmitter: 9V bloc

Power consumption < 1,8 V

Connector Jack 3,5 mm/6,35 mm stereo

Weight Receiver: 230 g (inc. Batteries)

Weight Transmitter: 200 g


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