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Sennheiser HDR120 Supra-aural Supplemental Wireless Headphone for RS-120 System

  • 22Hz-19.5KHz
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Sennheiser HDR 120 Supra-aural Supplemental Wireless Headphone for RS-120 System

The HDR 120 delivers great transparent and well-balanced sound. Matched with exceptional bass response, it is ideal for TV applications and all music types.

  • Open, stereo, supra-aural, wireless RF headphone
  • Detailed, analytical sound reproduction with strong bass response
  • Suitable for all types of modern music and TV applications
  • Wireless freedom with reception through walls and ceilings
  • Very lightweight headphones, extremely comfortable to wear
  • Appealing, modern design


Impedance 24Ω
Frequency response 22 - 19500Hz
THD, total harmonic distortion < 0.7%
Ear coupling Supra-aural
Transducer principle open, dynamic
Weight 230g
Operating time 20 hours
Power supply 2 AAA batteries
SPL for peak deviation 106dB

Learn more about the Sennheiser Electronic corp. HDR120


Wireless & Bluetooth


Wireless Type
up to 328 ft

General SPEC

Frequency Response
< 0.7 %
Signal to Noise Ratio(SNR)
> 65 dBA
106 dB (SPL)
Ear Coupling
0.44 lbs


No base unit included.
Additional headphone for RS 110 + RS 120

Manufacturer Warranty

2 years limited
2 years limited

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Sennheiser Electronic corp. HDR120

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  • HUGO F.
  • 4/16/2010 10:17:20 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsPremium Sound Quality for Reasonable Price

Pros: Good Fit. Adjustable Fit. Quality Materials. Comfortable. Good Quality Sound. Good Range; 50 feet around the office building.

Cons: The materials are good quality but a noticeable step down from the RS-140. The volume and tune control dials are right next to each other and you may hit one by mistake; should be re-located. There is some static some times from other devices operating in similar frequency.

Other Thoughts: This is actually my second pair of Sennheiser Wireless. I also have RS-140 for home theater use. I use the RS-120s at work Every Day. I wear glasses and these headphones don't bother me at all after 6 to 7 hours. I do get some static from time to time but that is because we have a ton of wireless signals running through here all day because of the work that we do in similar frequencies. I have purchased other wireless headphones from other brands and these are by far the best: reception, sound quality, cost. The Pioneers are just as good but at a much higher cost. If you are going to use these often I would recommend moving up to the RS-140 instead. Remember, these are only ADD-ON headphones, which is great because you and your other can listen at the same time.

5 out of 5 people found this review helpful. Did you? Yes No

  • Anonymous
  • 1/27/2006 7:25:39 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsLook Carefully at the Specifications

Pros: The Actual RS-110 and RS-120 are very nice wireless headphones sets.

Cons: THIS IS JUST THE HEADPHONES!! You do not get the receiver or the charger...It's easy to miss that fact since the tital is very misleading

Other Thoughts: I bought this thinking it was the real deal, unfortunately I didn't realize it was just an extra headphone until it arrived. I wish Newegg would make it more clear on the item page.

35 out of 38 people found this review helpful. Did you? Yes No

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