The IPX65 waterproof motorcycle communication systems support voice calling by activating voice assistant (‘OK Google/Hey Siri/Bixby' etc). After 2.5 hours of fully charging, this helmet bluetooth headset supports 1 month standby time, 17 hours phone talking or intercom time or 15 hours music time. By pressing the multi-function button or turning the jog dial, you’re permitted to easily switch between answer&reject phone calls, adjust volume, listen to music and FM Radio. With CVC&DSC echo cancellation and noise suppression technology on the motorcycle helmet intercom, crystal clear voice is guaranteed at high speed. Equipped with 5.0 Bluetooth chip, this motorcycle bluetooth headset could realize group talking up to 6 riders at a range of up to 1.2km in open terrain.