Features:1. new and high quality.2. Compatible with most smartphones and bluetooth headset on the market, except the Xiaomi mobile phone.3. Bluetooth 5.3 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.6. Bluetooth handsfree function can help rider to control the phone calls.7. Support voice assistant, to wake up the Siri/Android/Google voice assistant on mobile phone.Specifications:Material: ABS+SiliconeBattery: 500mAhCharging time: About 1.5hStandby time: About 1-2monthPlaying time: About 800hSize: 16.5*4.5*3.5mmCall key:Single click: play/pause, answer/hang up calls;Double-click: call back;Long click: caller reject;< key:Click: music previous song;Long press: start intelligent voice assistant; > key:Click: music next songLong press: start intelligent voice assistant+ key:Click: increase volume;Long press: continuously increase the volume;- key:Click: decreases the volume;Long press: decreases the volume continuously;Package includes:1x Bluetooth Control1x Charging cable1x User manual