Feature:1. Stable And Fast: This wireless helmet headset adopts BT 5.0 technology standard, stable transmission, wider coverage and faster speed.2. Low Power Consumption: The motorcycle headset has a built in 450mAh battery with long battery life and low power consumption to meet your outdoor use needs.3. Noise Reduction: Using intelligent noise reduction technology, the sound of calls and music is clear, this motorcycle headphone is suitable for full helmet use.4. Easy To Use: Large button operation, more convenient, this headset also supports FM radio, turn on the power, connect to the mobile phone to use.5. Automatic Answering: Wireless motorcycle helmet earphone supports automatic answering of incoming calls, improving the safety factor of riding.Specification:Item Type: Helmet HeadsetMaterial: ABSBT Version: V5.0Supported Protocols: A2DP and ACRCPBuilt in Lithium Battery Capacity: 450mAh (Included)Charging Voltage, Current: DV 5V/300mAFrequency: 2.402-2.480GHzStandby: 360 HoursUse Time: ≤12 HoursWorking Time: About 10 Hours.Package List:1 x Headset Host1 x Set of Host Mounting Clip (2pcs Combined) 4 x Mounting Screw1 x Screwdriver1 x Earpiece Microphone1 x Charging Cable1 x Manual