Describe: 1. bluetooth cut song, answer the phone, ultra-long standby, waterproof and non-slip. 2. most smartphones and bluetooth headset on the market, except the mobile phone. 3. Bt 5.3 version,backward various Bt 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. Bt handsfree function can help rider to control the phone calls. 7. Support voice assistant,to wake up the for Siri/Android voice assistant on mobile phone. 8. for 10S 7.0 or Android 4.4+. Specifications: Bluetooth: 5.3 Material: ABS+Silicone Colour: black Powerful or not: built-in power Battery: 180 mAh large battery Standby time: About 6-8month Playing time: About 800hInside diameter: 28-32 inch Product size: 86*16*56.5mm Applicable models: motorbike electric car bicycle scooter Features: bluetooth cut song, answer the phone, ultra-long standby, waterproof and non-slip Features: IP6 waterproof, Apple and Android both, intelligent AI power saving, 0.5 seconds to wake up, 5 months long standby, 10 metres without disconnecting, even strong anti-interference. Package includes: 1x Remote controller 1x Charging cable 1x User manual 1x Packing box