SoundMate Listening System (Kit)


Product Highlights

  • 17 user selectable frequencies
  • Balanced/Mic, line, or 70 volt XLR as well as an unbalanced ¼” input
  • Kit Includes: TELEX ST-300 Soundmate Transmitter (1), TELEX SR-400 Soundmate Receiver (5), TELEX HED-2 Soundmate Headset (5)
Rentex No. COMTSA1 | Mfr No. F.01U.118.400/F.01U.118.401

The Telex ST-300 is a personal and assistive listening wireless base transmitter, featuring 17 user selectable frequencies in the VHF band. The unit is equipped with a comprehensive set of front-mounted control buttons, a backlit LCD display, a headphone jack with an adjustable level knob for input signal monitoring, and a peak reader on the LCD display for visual input monitoring.

The Telex SR-400 is a portable VHF 16-channel frequency-agile receiver with clear reception and treble boost control for improved intelligibility,
designed for assisted listening applications.


  • (1) TELEX ST-300 Soundmate Transmitter
  • (5) TELEX SR-400 Soundmate Receiver
  • (5) TELEX HED-2 Soundmate Headset

Telex SR-400 17-Channel Assistive Listening Receiver

Type of Receiver Assistive Listening Receiver
RF Carrier Frequency Range 72 – 76 MHz
Approx. Working Range 300′
Overall Frequency Response 100 Hz – 10 kHz, (+/-3dB)
Signal-to-Noise Ratio >60 dB
# Of Channels 17
Type of Output(s) 1 x 1/8″ Mini Jack
Headphone Monitoring 1 x 1/8″ Mini
Power Requirements 2 x “AA” Batteries
Battery Type/Approx. Life Two (2) “AA” Batteries/30 Hours Alkaline, 10 Hours NiCad
Display Backlit On/Tuning Indicator
Mounting Options Belt or Pocket
Antenna Type Uses Earphone Wire
Dimensions 4 x 2.75 x 1″ (101 x 70 x 25mm) HxWxD
Weight Not Specified by Manufacturer



Telex ST-300 VHF Wireless Personal Listening System Transmitter

General System
System Modulation FM
Frequency Range 72 – 76 MHz
Operating Range 300′ (91 m)
Tuning Frequency Control Crystal, +/-.005% tolerance
Power 13 – 20 VDC/VAC 115 VAC, 6 0Hz 300 mA
Battery Life Not Applicable
Charging Time Not Applicable
FCC License Part 15, B5DM508




Output 80 K µ V/m @ 3 m
Deviation +/-25 kHz
Modular Distortion Not Specified by Manufacturer
Sensitivity Not Specified by Manufacturer
IF Bandwidth Not Specified by Manufacturer
Image Rejection Not Specified by Manufacturer
Controls and Indicators 1 x Power Switch 2 x Up/Down Increment Buttons 1 x Set Button 1 x Headphone Monitor Volume Control Knob 1 x Backlit LCD Display
Connectors 1 x 3-pin XLR Female, Balanced Input 1 x 1/4″ TS Phone, Unbalanced Input 1 x Screw-In BNC Antenna Connector 1 x 1/4″ Stereo Headphone Out
Antenna 1 x Detachable Telescoping 1/4 Wave
Dimensions 1.8 x 7.6 x 5.9″ (45 x 192 x 150 mm)
Weight 4.4 lb (2 kg)(shipping weight)


Rent from a Partner, Not a Competitor

24/7 Sales
& Technical support

24/7 Audio Video Rentals

Same Day Delivery
to Most Major Cities

24/7 Audio Video Rentals

Subrental Pricing

24/7 Audio Video Rentals

A Large Inventory of
High-Quality Equipment

24/7 Audio Video Rentals

QC Process

24/7 Audio Video Rentals

Rentex Locations

With locations across the country, Rentex can deliver to most major cities.

To reach local support, simply click on the location below. For Rental Emergency Support, call (866) 541-3465