Check the listing for details. Lectrosonics R400 UHF Synthesized Receiver + Lectro UH400A Transmitter Wireless. Condition: Used. Listed at 1079.85 USD. Lectrosonics R400 UHF Synthesized Receiver + Lectro UH400A Transmitter Wireless System Liquidation Stock In good secondhand condition and good working order Please click on the photos to see supersized images and to study the condition of the actual wireless kit being sold The R400 is a high performance, triple-conversion, frequency synthesized UHF receiver fully compatible with all Lectrosonics 400 Series Digital Hybrid WirelessTM transmitters, 200 and 100 Series analog transmitters, plus analog transmitters from other manufacturers (call Lectrosonics for details). The R400 features 256 user selectable frequencies and its proprietary audio processing includes a digital signal processor (DSP) for very low distortion and a superior signal to noise ratio with audio output adjustable from -50 dBu to +5 dBu in 1 dB increments.