BUILT FOR LIVE: The dual wireless microphone system with the 48kHz/24Bit UHF digital circuitry transmits encrypted signals to avoid signal crosstalk and deliver delay-free accurate sound. Featuring 2x15 UHF tunable frequencies in 902 - 928MHz, the wireless lapel lavalier and wireless headset mics fend against crowded spectrum conditions, available for simultaneous multiset hookup. The bodypacks connecting the headset/lapel mic via the 3-pin mini XLR jack render free performance and pure sound GOOD TO GO: 1500mAh battery of the receiver and 550mAh battery of bodypack transmitters via universal USB Type-C charging port for long-lasting battery life. The bodypacks with lavalier and headset microfono feature a one-tap frequency selection and mute function for convenience and smooth performance. Just turn on the wireless headset lapel microphone system, and you are good to go with the 160 - 200ft line-of-sight range. Keep the antenna upward and avoid metal/glass for a better range POR