Feature:1. BLUETOOTH 5.0 TECHNOLOGY: Helmet bluetooth headset uses 5.0 Bluetooth technology, stable signal transmission, ultra low power consumption.2. AUTO ANSWER FUNCTION: Helmet bluetooth headset supports all bluetooth devices, supports auto answer function, convenient and fast.3. POWER DISPLAY FUNCTION: Intercom headset supports for IOS and most of for Android cell phone power display function, the remaining power at a glance.4. SUPERIOR PERFORMANCE: Intercom headset adopts windproof and anti dry design, level 7 waterproof, supports two cell phones connected at the same time5. INTELLIGENT VOICE FUNCTION: Bluetooth 5.0 intercom headset supports manual intelligent voice activation.Specification:Item Type: Helmet Bluetooth HeadsetMaterial: ABSBluetooth: 5.0Range: 10-15m/32.8-49.2ftBuilt in Polymer Lithium Battery: 1000mAhCharging Time 1H.Package List:1 x Mainframe 3 x Hook and Loop Fasteners1 x Helmet Bluetooth Headset 1 x Charging Cable 1 x Manual