Feature:1. AUTOMATICALLY ANSWERING CALLS: BT 5.0 helmet headset is equipped with Bluetooth 5.0 chip, supports intelligent noise cancellation and cell phone voice helper system, supports automatically answering calls, freeing your hands.2. FUNCTION: motorcycle bluetooth headset has the function of listening to GPS navigation voice, hands free calling, music, voice helper, FM radio. Large press button, easy to operate function control, more convenient to operate.3. LONG TIME STANDBY: The Bluetooth headset is equipped with 450mAh rechargeable lithium battery, charging time is about 2 hours, standby time is about 360 hours. No need to worry about the power problem4. NOISE CONTROL: Motorcycle bluetooth headset supports DSP noise suppression technology, suppresses all kinds of reverberation noise and effectively reduces background noise, allowing you to enjoy high definition calls while riding.5. VOLUME ADJUSTMENT, SUPERIOR SOUND: Volume Upgrade technology allows you to easily adjust the volume you need. Deep bass and crisp treble response can perfectly solve the problem of not hearing the headset while riding.6. IP65 WATERPROOF, EASY TO INSTALL: The waterproof helmet speakers can be used with confidence even in rainy or snowy days. Easy to install and compatible with all kinds of helmets.Specification:Item Type: Motorcycle Bluetooth HeadsetMaterial: PlasticBluetooth: 5.0Frequency Range: 2.402GHz~2.480GHzDistance: Approx. 20-30m/65.6-98.4ft (Varies by Phone)Battery Capacity: 450mAh Lithium Battery (Included)Charging Voltage: 5V.Package List:1 x Motorcycle Bluetooth Headset1 x Charging Cable8 x Touch Fastener1 x Instruction Manual