Features: Its a media control button that allows you to play or pause music, skip back or forward a song, increase or decrease the volume of your media. Use the included mount to attach the Media Button to your steering wheel or onto bicycle handlebars, allowing you to keep your eyes on the road and your hands on the wheel Convenient to use, small and compact, the wireless Bluetooth range is up to 40 feet. CR2016 battery is projected to last at least 2 years. Come with a strap, you could freely take it anywhere you go. Compatible with most of iOS devices supporting Bluetooth 3.0 and later (support iPhone 7 and iOS10), Android OS 4.0 or later. Material: Aluminum alloy+ABS Battery:1x CR2016 battery(included) Bluetooth: 4.0 OS Supperted:iOS devices supporting Bluetooth 3.0 and later (support iPhone 7 and iOS10); Android OS 4.0 or later Size: As the Pictures Package Included: 1 x Bluetooth Media Button