Sony UWP-X166/68 Wireless UHF Lavalier Microphone System with Mic, Receiver Module for MB-806A Tuner Base Unit & Body-Pack Transmitter, Channels 66 to 69.

UWP Series UHF Synthesized wireless microphone system. Package includes a lavalier microphone, bodypack transmitter and tuner module. Channels 66 to 69.

PLL Synthesized System:
• To achieve stable transmission and reception. Avoid interference with other frequency channels and to allow the selection of apreferred channel from multiple frequencies.

Space Diversity Reception System:
• Reduces the occurrence of reception interruptions (signal dropout).

Tone Squelch Circuitry:
• Prevents the output of unwanted signals or noise from other signal transmissions in the air, as well as the RF noise and popping noise that occur when the transmitter is powered on or off.

Simultaneous Multi-Channel Operation:
• Users can easily choose intermodulation-free frequencies for the transmitters and tuners, simplifying the task of system set-up.