1. and high quality 2.Compatible with most smartphones and Bluetooth headset on the market, except For Xiaomi mobile phone 3.Bluetooth 5.0 version, backward compatible with various Bluetooth versions 4.120mm strap design, can be fixed in the bicycle, motorcycle, motorcycle grip 5.IP67 Waterproof, silicone material, can do a good job of dustproof and rainproof<br><br>6.Bluetooth handsfree function can help rider to control the phone calls. 7.Support voice assistant, to wake up the For Siri /For Android/ For Google voice assistant on mobile phone Material: ABS Battery:500mAh Charging time: About 1.5h Standby time: About 1-2month Colour:Black<br><br>Package Contents: 1 x wireless remote control<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.