Wireless Bluetooth-compatible Remote Control Car Steering Wheel Motorcycle Bike Handlebar Media Remote Controller Shutter for iOS Android. Features: Touch the Bluetooth-compatible button to control multimedia playback without touching your phone, control multimedia playback, pause and track forward and backward, and adjust the volume of mobile phone ringtones and multimedia playback volume. Good compatibility for iOS devices with Bluetooth 3.0 or higher and Android devices with Bluetooth 4.0 or higher. Compact design with a diameter of 35mm. Material: ABS + aluminum alloy, Battery: CR2016 button battery, Net weight: 30g, Size: 35mm/1.38" in diameter.