Stylish and cool appearance design, built-in high-quality Bluetooth chip, lets music surround your life and enjoy the music experience. Hands-free function, truly freeing your hands, allowing safe riding without needing to pick up your phone for calls. Built-in rechargeable lithium-ion battery, long standby time, extended working time, low battery voice alert, easy to know when to charge. New waterproof structure design, supports Siri intelligent voice control for iOS 4.0 and above, and supports Android intelligent voice control, convenient, fast and smart. FM radio function (performance may vary depending on usage scenario and environment). Features new Bluetooth 5.0 technology, stable transmission, low power consumption, with automatic answering function, also supports manual answer and reject calls, safe and fast. Built-in high-quality anti-interference microphone for effective hands-free calling. High-fidelity sound effects, supports previous and next song switching, volume up/down, playback/pause, automatic callback and other functions, easy to operate. Bluetooth version: 5.0 Frequency: 2.4022.480 GHz Bluetooth range: 10 meters Lithium battery: 3.7V/450mAh Charging voltage: 5V Standby time: 360 hours Core functions: FM radio, music playback, connection to 2 mobile phones simultaneously, connection to walkie-talkie via wired connection Material: ABS Color: 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 Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement allows an error of +/- 1-3 cm.