1. and high quality 2. most smartphones and bluetooth headset on the market, except the mobile phone 3. Bluetooth 5.4 4. IP67 Waterproof,silicone material, can do a good job of dustproof and rainproof 5. Bt handsfree function can help rider to control the phone calls. Support voice assistant,to wake up the for Siri/Android voice assistant on mobile phone Standby time:About 1 month Playing time:About 600h Colour:Black Material:ABS Package Contents: 1 * handle Bluetooth controller 1 * charging cable 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.