Listen Technologies LS-56-072 iDSP Stationary RF SystemThe LS 56 Advanced Level I Stationary RF System includes the LT 800 072 72 MHz transmitter, telescoping antenna, and four (4) LR 5200 072 Advanced iDSP receivers. Designed to make it faster and easier to offer multi channel assistive listening to your visitors and clients, the LR 5200 072 offers listeners exceptional audio performance and clarity thanks to having 20 dB less hiss than other RF receivers on the market. Each receiver gives listeners the