Sennheiser - RS 120-9 - RF Wireless Headphones

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  • SKU: RS1209
  • Frequency: 22 - 19500 Hz
  • Impedance: 24 Ω
  • NFC: No
  • Bluetooth : No
  • Microphone: No
  • Earphone Jack: Jack 3,5 mm/6,35 mm stereo
  • Battery Type: 2 AAA cells-rechargeable

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.

The RS 120 II wireless headphones not only opens you to a world of true freedom of movement but also, breathes new life into audio with its sleek design. Its detailed, balanced sound reproduction coupled with strong bass response makes it an ideal choice for all types of music and TV applications.

Rediscover the world of wireless freedom with a touch of simplicity and elegance.


Wireless freedom with reception through walls and ceilings using RF transmission. Range of up to 100 metres (300 feet)


Detailed, balanced sound reproduction coupled with strong bass response makes it an ideal choice for all types of music and TV applications


Very lightweight headphones, extremely comfortable to wear. Open-back headphones perfect for long use.


On/Off switch, volume control and frequency tuner conveniently located on the ear-cups of the headphones. The transmitter also comes with a metal cradle for easy storage and charging the headphones.


The headphones come with a 2 year warranty

Images are representative only.

Additional Information

SKU RS1209
Frequency 22 - 19500 Hz
Impedance 24 Ω
Bluetooth No
Microphone No
Earphone Jack Jack 3,5 mm/6,35 mm stereo
Battery Type 2 AAA cells-rechargeable
Weight 230g (including batteries)
Manufacturer Warranty (Years) 2

Manufacturer Specs

RF wireless headphone system
Transparent sound with strong bass
Ideal for modern music & TV
Lightweight & comfortable
Appealing, modern design
Range of up to 100 metres
Three selectable RF channels
Open, stereo, supra-aural, wireless RF headphone system
Detailed, analytical sound reproduction with strong bass response
Perfectly suitable for all types of modern music and TV applications
"Wireless freedom of sound" with reception through walls and ceilings, even outside in the garden
Control elements conveniently positioned to provide easy, intuitive operation
Transmitter with metal cradle for storing and recharging the headphones. Nesting the headphone couldn't be easier – no more fumbling like with most other systems in the market!
Optional wall mounting of transmitter possible
Very lightweight headphones, extremely comfortable to wear
Rechargeable NiMH batteries included (size: AAA)
Technical Data
Max. Sound pressure level (aktiv): 106 dB
Powering 9V DC (transmitter): AAA batteries (receiver)
Range: up to 100 m
Modulation: FM Stereo
Signal-to-noise ratio: > 65 dBA
RF frequency range: 926 - 928MHz
Frequency response (headphones): 22 - 19500 Hz
Transducer principle: dynamic, open
Operating time (Accupack): approx. 20-25 h
THD, total harmonic distortion: < 0,7 %
Jack plug: 3,5mm / 6,3 mm stereo (863-865 MHz), cinch (926-928 MHz)

Warranty Details

When you purchase a Sennheiser product, you have the peace of mind in knowing that your product is covered by Sennheiser two year (2 year) International Warranty. For details, click here.

What's in the Box?

• HDR 120 II headphones

• TR 120 II transmitter with audio connecting cable

• Mains unit

• Two rechargeable batteries, 1.2 V, AAA size, Ni-MH

• Adaptor, 1/4" (6.3 mm)

• Quick Guide

• Safety Guide

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