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 playpause, 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: BT5.4Transmission distance: more than 10mCharging time: about 1 hoursContinuous working time: about 25 hoursMaterial: electronic componentsColor: BlackItem Height: 4cmItem Width: 8cmItem Length: 12cmApplicable scene: suitable for all non-intercom helmet headsets and intercom helmet headsetsPackage List:1 * Wireless Button Controller1 * Charging Cable1 * Fixed Fitting1 * User Manual