Features:BT headset communication system: Using full duplex call, this two-way BT headset supports any 2 paired riders to talk at the same time within a maximum range of 1200 meters (straight line unobstructed).BT pairing: This headset allows for easy pairing of up to 6 riders, including a host and 5 subs.Large battery capacity: With a large 850mAh rechargeable battery, only 2.5 hours of charging, the intercom can work up to 12 hours and standby time up to 240 hours.Powerful features: After pairing with your phone via BT, this motorcycle BT headset will automatically answer calls after 3 seconds, you can also listen to GPS navigation or listen to music while riding.ESP noise reduction: With improved noise cancellation technology, it supports A2DP high quality stereo sound, which helps reduce annoying noise caused by wind, engine and surroundings.Waterproof: Protects against fog, rain and sweat immersion.Specifications:Color: blackBT Version: 5.0Chip: BC 5Battery capacity: 850mACharge and discharge times: 500Operating voltage: 3.3V-4.2VTalk time: 24HStandby time:240HCharging time:2.5HSpeaker power: 0.25WWaterproof level: 5 levelsOperating temperature range: -10 Degrees Celsius-45 Degrees CelsiusCharging method: Type-C port chargingPackage size: 22.5 * 10 * 6cmPackage weight: 360gPackage List:2 * Host2 * Earphone 4 * Fastener Tape 2 * Clip 4 * Screws1 * Screwdriver2 * Charging Cable1 * Instruction Manual