Features: 1. Brand 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+Silicone Battery: 500mAh Charging time: About 1.5h Standby time: About 1-2month Playing time: About 800h Size: 16.5*4.5*3.5mm Call 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 song Long 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 Control 1x Charging cable 1x User manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia