The Sony WRT-807B is a high-quality handheld dynamic microphone transmitter with F-790/9X microphone head B42 that operates in the 800 MHz UHF band range. It incorporates a PLL synthesized design with 94 user-selectable, UHF frequencies of interference-free operation. Complete multiple channel operation is possible. Additional features include, space diversity reception and back-lit LCD indicators Reliable and sophisticated circuit technology assure low noise, wide dynamic range and extremely stable signal transmission and reception. The WRT-807B also incorporates Sony's best dynamic element (the F-780/9X microphone head).