The Azden 200-IT Wireless VHF Instrument System is the result of years of design and manufacturing experience in quality wireless, and is our new "value" leader. Housed in a durable ABS case, with Power On-Off, volume control, and available in 25 frequencies, it gives you excellent RF performance at an attractive price. This kit comes with the 31-IT bodypack instrument transmitter and BC-26 power supply. The 31IT also has an input level control, a durable ABS case with snap-off belt clip, and a 3-position Power switch with Standby for muting the audio.