Features:Good performance: This helmet wireless headphone is fast and stable, and the microphone features CVC noise reduction.IP67 waterproof: This motorcycle helmet earphone can work properly even on a rainy day, it is not afraid of water.Simple to use: With a button operation design, this motorcycle helmet headset allows you to easily answer calls, and adjust the volume.Two installation ways: This bluetooth-compatible helmet earphone can be mounted by clips or by stickers, more convenient and flexible.Large capacity battery: This wireless helmet headphone features a 1500mah cell, making the headphone can work up to 80 hours.<br> Specification:Color: Black, silverBluetooth-compatible version: 5.0Working time: About 80hStandby time: About 600hCharging time: About 2.5hCharging port: Micro USBPower: 5V, 1A<br> Size: 8.6*4*2cm<br> Notes:<br> 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.<br> 2. Please allow slight manual measurement deviation for the data.