The Telex Soundmate SMP-400 is a portable, battery operated, VHF wireless personal monitoring system, packed into a professional carrying case with a foam-padded interior. The system is notable the for ease of operation and light weight of the principal components, clarity of sound, and a 300' operating range.
The Soundmate SMP-400 system consists of the PST-170 transmitter, which operates on one of 17 selectable frequencies, 4 17-channel, frequency agile SR-400 portable receivers, with companion HED-2 collapsible headphones, and the HM-2 headworn microphone, which features a discreet, lightweight, behind-the-head headband. The case and 10 "AA" batteries are also part of the package.
The SMP-400 is designed as a low cost alternative solution for bus and museum tours, house of worship or theatrical assistive listening applications, and conferencing situations involving multi-client, multi-user translation needs.