Features: 1. Stable and Fast BT Connection: This handlebar controller for smartphones wireless headset uses BT 5.4 technology to ensure a stable and fast connection with your phone. Easy to install on various motorcycles, electric bikes, and bicycles. 2. Control Calls with Ease: Easily manage calls with functions like answering, hanging up, redialing the last number, and rejecting incoming calls, all at the press of a button. 3. Effortless Music Control: Control your music playback with ease, including play or pause, next track, previous track, and volume adjustment, making your ride more enjoyable. 4. IPX6 Waterproof and Voice Assistant: IPX6 water resistance design withstands harsh weather conditions. Enjoy hands-free operation for calls and music with simple voice commands. Specification: Bluetooth version: BT5.4 Transmission distance: more than 10m Charging time: about 1 hours Continuous working time: about 25 hours Material: electronic components Color: Black Item Height: 4cm Item Width: 8cm Item Length: 12cm Applicable scene: suitable for all non-intercom helmet headsets and intercom helmet headsets Package List: 1 x Wireless Button Controller 1 x Charging Cable 1 x Fixed Fitting 1 x User Manual