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Sennheiser RS 185 Digital Wireless Headphone System



Providing uncompressed digital audio transmission within up to a 328' range, the RS 185 Digital Wireless Headphone System from Sennheiser consists of a pair of HDR 185 headphones and a TR 185 transmitter that doubles as a cradle and charging station for the headphones. The system supports both analog and digital optical inputs, and gives you the option of automatic or manual level control. The headphone's lightweight and ergonomic design allow them to be worn comfortably during extended listening sessions. A pair of rechargeable batteries, analog and optical cables, and a power supply are included.

  • Wireless, open, circumaural headphones with uncompressed digital audio transmission
  • Exceptional digital audio clarity and transmission range of up to 328' (100 m), line of sight
  • Sennheiser transducers for precise sound
  • Control the sensitivity of your analog input: choose between Automatic Level Control (ALC) mode to even out volume differences automatically or Manual Level Control (MLC) mode to manually adjust the sensitivity
  • Supports analog and digital audio inputs and allows toggling between the inputs
  • Balance control located on the headset for adjustments
  • Multi-purpose transmitter - also functions as 'easy-charge' cradle and docking station
  • Multi-receiver transmission: transmitter supports up to two pairs of headphones simultaneously
  • Ergonomic design



  • Frequency Response: 17 Hz to 22 kHz
  • Maximum SPL: 106 dB at 1 kHz, 3% THD
  • THD: <0.5 at="" 1="" khz="" 100="" db="" spl="" p="">
  • Transducer Principle: Dynamic, open
  • Operating Time: Up to 18 hours
  • Weight: 10.9 oz (310 g), including batteries


  • Audio Input: 1x Stereo RCA analog input, 1x Optical digital input
  • Power Consumption: ≤ 0.3 W (standby)


  • Range: Up to 328' (100 m)
  • Signal to Noise Ratio Analog Input: ALC typical, 85 dBA at 1 Vrms, MLC ≥ 90 dBA
  • Digital Input: > 90 dBA
  • Modulation: 8-FSK Digital
  • Carrier Frequency: 2.4 to 2.48 GHz

Packaging Info

  • Package Weight: 3.45 lb
  • Box Dimensions (LxWxH): 10.2 x 9.5 x 6.0"

In The Box

  • Sennheiser RS 185 Digital Wireless Headphone System
  • HDR 185 Headset for RS 185 System
  • TR 185 Transmitter
  • RCA Audio Cable
  • Power Supply
  • 4 x Adapters (EU, UK, US, AU)
  • 2 x AAA NiMH Rechargeable Batteries
  • Limited 2-Year Warranty
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