Shure Wireless Microphones/Accessories – BLX SYS W/CVL -J10 – MicrophonesIncludes BLX4 wireless receiver, BLX1 body pack transmitter, CVL Lavalier microphone, power supply, Lavalier clip, windscreens, and user guide.
Power and battery status LED
Adjustable gain control
Quick & easy frequency matching
300 feet (91 m) operating range (line of sight)