Williams Sound WIR-RX18
Stethoscope-style IR receiver, two-channel, tunes 2.3 or 2.8 MHz or stereo


The WIR RX18 is a two-channel infrared receiver designed for use with a transmitter operating on 2.3 or 2.8 MHz or stereo. This easy-to-operate, stethoscope style receiver is ideal for listening applications where optimal sound quality is essential. The lightweight, one-piece design is comfortable and easy-to-clean. An on/off control is built into the arms of the unit, saving on battery life. BAT AP07D battery is included. Use with CHG 518 charger.


  • Simultaneous Interpretation
  • Audio Description
  • Media Rooms
  • Conferences
  • Boardrooms
  • Courtrooms
  • Schools
  • Universities
  • Cinemas
  • Churches


  • Weight: 2.0 oz (56 g) with battery
  • Material and Color: ABS plastic, Black and Grey
  • Battery Type, Life: BAT AP07D NiMH Battery Pack, 7 hours
  • Operating Range: 10,000 ft2 (3,048 m2) when used with the TX9 emitter or TX90 transmitter in single channel mode
  • Modulation Frequency: 2.3 MHz or 2.8 MHz or stereo
  • Frequency Response: 200 Hz to 8 kHz, ± 5 dB
  • Signal to Noise Ratio: 60 dB at 10 m
  • Controls: Volume control thumbwheel, 3-position selection switch (2.3 MHz, 2.8 MHz, stereo)
  • Acoustic Output: 120 dB MAX SSPL90 with 2 cc coupler
  • Compatibility: Compatible with 2.3 MHz and 2.8 MHz IR transmitters, WIR TX900 and WIR TX925 systems
  • Power Switch: Built into receiver “arms”
  • Ear pads: Uses EAR 240 silicon eartips
  • Approvals: CE, RoHS
  • Warranty: 5 years (90 days on battery)

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