Feature: 1. BLUETOOTH 5.0: Adopt Bluetooth 5.0 technology standard, stable transmission, wider coverage, faster speed and lower power consumption. 2. NOISE REDUCTION: This motorcycle helmet Bluetooth headset adopts intelligent noise reduction, the sound is clear and waterproof. 3. FM RADIO FUNCTION: Motorcycle helmet headset supports FM radio function, built in 500mAh lithium battery, standby for 360 hours. 4. EASY TO OPERATE: Large button operation, more convenient operation, turn on the power, connect the mobile phone to use. 5. AUTOMATIC ANSWERING: Automatic answering of incoming calls, improve riding safety factor, safer and more convenient. How to Use: Turn on the power and connect your phone to use it. Specification: Item Type: Motorcycle Helmet Bluetooth Headset Material: ABS Bluetooth Version: V5.0 Supported Protocols: A2DP and ACRCP Built in Lithium Battery Capacity: 500mAh (Included) Charging Voltage/Current: DV 5V Frequency: 2.402-2.480GHz Standby: 360 Hours Use Time: ≤10 Hours Package List: 1 x Headphone Host 1 x Earpiece Microphone 1 x Hook and Loop 1 x Charging Cable 1 x Manual