Clear-Com RS-703 - Dual-Channel Wired Beltpack for Encore Series IntercomThe RS 703* is a two channel analog beltpack with an XLR 3 line connector and XLR 4M headset connector. A mic preamp with a dynamic range of 130 db enables intelligible voice communication for every volume level, from a whisper to a shout. The beltpack also combines high headroom, low noise audio and shaped frequency contour (Clear Com Sound) to deliver crystal clear audio. A thumbwheel level adjustment is available for Program In, as welll as a 3.