1. Stylish and cool appearance design, built-in high-quality Bluetooth chip, let music surround your life and enjoy the feast of music. 2. Hands-free function, truly freeing your hands, you can ride safely, and you don't need to lift your phone to make calls, which is 3. Built-in rechargeable lithium-ion battery, long standby time, long working time, low battery voice alarm, easy to know when to charge. 4. New waterproof structure design, supports Siri intelligent voice control function FOR of IOS 4.0 and above, and supports FOR android intelligent voice control function, which is convenient, fast and smart. 5. FM radio function (the effect will vary depending on the usage scenario and environment) Using the new Bluetooth 5.0+ Bluetooth technology, transmission, low power consumption, with automatic answering function, you can also manually answer and reject calls, safe and fast, built-in high-quality anti-interference microphone, can effectively achieve hands-free answering and hang up. High-fidelity sound effects, supports previous and next song switching functions, volume increase and decrease, playback pause, automatic callback and other functions, easy to operate. Bluetooth version: 5.0 Frequency: 2.402-2.480GHz Bluetooth range: 10 meters Lithium battery: 3.7V/450mAh Charging voltage: 5V Standby time: 360 hours Core functions: FM radio/music/can be connected to 2 mobile phones/can be connected to a walkie-talkie (wired connection) Material: ABS colour: black Package Contents: 1 x HOST 1 x Type-C charging cable 1 x earphone clip 1 x Sticker 1 x Speaker earphone 1 set Fixed accessories 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.