The UHF-116HL includes a headset/lavalier combo mic and belt pack transmitter making it perfect for presenters, public speakers, DJs and fitness instructors. The headset is lightweight and discreet with soft padding, plus the microphone comes with a foam screen to limit popping and reduce wind noise during outside operation. Using Phase Locked Loop (PLL) circuitry to prevent phasing issues that plague other wireless systems, the receiver also boasts LED indicators for power and channel, along with rotary volume control. Plus, channel Selector Pins on the receivers and transmitters allow to set the desired frequency quickly and easily. And for convenient control over your audio, the microphone transmitter and belt pack transmitter also feature mute switches allowing you to swiftly silence the audio signal when we don’t want vocals heard.