Notice:V6plus motorcycle helmet headset supports 6 people group intercom !!The motorcycle helmet headset will be shipped in a box.Features:-Bluetooth Motorcycle helmet intercom with talking range up to 1500 meters-Big capacity battery, the 850mah battery prolongs the talk time and standby!-Full Duplex Wireless Bluetooth Handsfree intercom commnunicate-Up to Pair 6 Riders & Talk Between Any 2 of them at a time-Despite the plastic bracket clip, clip replacement is added to the V6 Plus accessories.-With Wind noise DSP cancellation, you could hear clearly at a speed up to 120km/h-High quality batteries, 3 hours charge to full and Up to 8 hours talking time-With Stereo Bluetooth Headset, supports stereo music/Audio navigation from GPS, Auto answer the call.-Ultrasonic integral molding, Better water resistance, could be used in all weather.-Hands free communication. you can pair with other 5 persons.-Suit for motorcycle helmet (Full-face / Half-face)-Works good with referee headset for football match(3-4pcs to make a referee group)Specifications:Product selling point: full duplex intercom, motorcycle intercom headsetNumber of teams: 6Bluetooth version: 5.1Chip: Chip Qualcomm 3024Intercom distance: 500 metersIntercom maximum distance: 1500 metersMaximum distance of Bluetooth link: 50 metersBattery capacity: 850mAhBattery Type: Polymer Lithium Ion BatteryBattery cycle life: 500 times (standard charge and discharge)Working voltage: 3.0V-4.2VTalk time: 2530HStandby time: 600HCharging time: 2.5HRadio frequency band: noneRDS database: noneSpeaker power: Rated Power Input 20MW, Max Power Input 30MWWaterproof grade: IP65 (spray-proof type, directly affected by water spray in any direction without harmful effects)TTS language features: noneWith or without automatic volume adjustment: noOperating temperature range: -30C to +60C (minimum and maximum operating temperature)Charger specification: DC 5V 1APackage included:1/2 x V6 Plus Helmet Intercom1/2 x Bluetooth Headset1/2 x USB cable1/2 x Clip1/2 x Screwdriver1/2 x User manual