WIR TX 238

Small-area Infrared Transmitter

Product Highlights

  • Stereo or mono operation, 2.3/2.8 MHz
  • 2-year warranty – 90 days on accessories



The WIR TX238 is ideal for TV listening, meetings, or any small group listening application. Listen at the volume of your comfort without disturbing others. The system connects directly to your TV, VCR, or DVD equipped with standard output jacks.

System Includes

(1) WIR TX 238 transmitter

(1) Power supply

(1) WCA 078 1m audio cable

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Wir tx238


  • Stereo or mono operation, 2.3/2.8 MHz
  • 2-year warranty – 90 days on accessories


WIR TX 238

Size, Weight, Color: 6.25" L x 3.25" W x 1.25" H (15.9 cm x 8.3 cm x 3.2 cm), 5.1 oz (140 g), Gray
Power Input: 12 VDC (center is positive) on DC connector, 200 mA Class II wall transformer
  TFP 024 Power Supply: North America: 120 VAC, 60 Hz, UL/CSA
  TFP 032 Power Supply, 2 pin Euro mains plug, 230 VAC, 50-60 Hz, CE
  TFP 033 Power Supply, 3 pin UK mains plug, 230 VAC, 50-60 Hz, CE
Subcarrier Frequency: 2.3 MHz, 2.8 MHz, or stereo
Range: 30ft (9m) line-of-site
Auto Power On/Off: Transmitter shuts off infrared after 5 minutes when audio signal is removed. Battery charging functions remain on full time.
Microphone Input: 3.5 mm jack for MIC 084 Electret TV Microphone, 1.5 kΩ
Line Inputs: 2 RCA jacks for mono or stereo line-level sources. 200 mV min. to 10 V rms max. input level, 5.1 kΩ
Automatic Level Control: 35 dB compression range
Infrared LEDs, Pattern: 6 IR LEDs, 45 degree cone-shaped coverage pattern to 6 dB intensity, 30 ft (9 m) line of sight
Charging Ports: Charges one WIR RX238 Receiver plus two additional BAT AP97A NiMH battery packs**
Approvals: RoHS, WEEE
Warranty: 2 years, 90 days on accessories

Accessories for WIR 238 Infrared Stethoset Receiver

All Williams Sound headphones and earphones are compatible with this product.


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