[Versatile Bluetooth Control]Control music playback, volume, and Siri on your smartphone or tablet directly from your steering wheel, enhancing convenience and safety while driving [Wireless Camera Shutter]Doubles as a remote shutter for your device's camera, allowing for natural selfies and group photos without awkward arm stretching [Energy Efficient]Smart power-saving design with 0.5-second wake-up time and an impressive 2-year standby period, ensuring long-lasting performance [Auto Sleep Mode]Automatically enters sleep mode after 30 seconds of inactivity to conserve battery, easily awakened by pressing any button [Wide Compatibility]Works with iOS 7.0 and Android 4.4and devices, making it suitable for a broad range of smartphones and tablets [Compact Design]With a diameter of 36mm and thickness of 8.5mm, this controller is sleek and unobtrusive on your steering wheel Specifications: Bluetooth Range: 10 meters Dimensions: 36mm diameter, 8.5mm thickness Battery Type: CR2032 (included) Compatibility: iOS 7.0 or Android 4.4and Material: ABS Standby Time: Up to 2 years Wake-up Time: 0.5 seconds