Features 1.The Bluetooth media button is mounted on the steering wheel or on the bicycle handlebar so you can keep your eyes on the road without leaving the steering wheel. 2.Control media playback, Bluetooth multimedia button allows you to play/pause/switch back and forth songs, control volume without reaching for your phone. 3.Bluetooth connection: Bluetooth multimedia button, simple connection, no need to install additional APP, Bluetooth connection range up to 40 feet(about 12 meters). 4.Long battery life: a built?in CR2016 button battery for up to two years of service life. 5.Embedding device, using a random base, can be attached to the steering wheel or the handle of the bicycle. specificationFeatures:_x000D_ _x000D_ The Bluetooth media button is mounted on the steering wheel or on the bicycle handlebar so you can keep your eyes on the road without leaving the steering wheel. _x000D_ Control media playback, Bluetooth multimedia button allows you to play/pause/switch back and forth songs, control volume without reaching for your phone. _x000D_ Bluetooth connection: Bluetooth multimedia button, simple connection, no need to install additional APP, Bluetooth connection range up to 40 feet(about 12 meters). _x000D_ Long battery life: a built-in CR2016 button battery for up to two years of service life. _x000D_ Embedding device, using a random base, can be attached to the steering wheel or the handle of the bicycle. _x000D_ _x000D_ _x000D_ s:_x000D_ Material: ABS_x000D_ Size: Approx. 3.5*3.5*1cm/1.38*1.38*0.39inch_x000D_ Bluetooth Standard: 4.0_x000D_ Transmission rate: 24Mbps_x000D_ Effective working radius: Approx. 12m/39.37ft_x000D_ _x000D_ _x000D_ Package list:_x000D_ 1 x Bluetooth Controller_x000D_ 1 x Fixing clip_x000D_ 1 x Key Chain_x000D_ 1 x Sticker_x000D_ 1 x Instructions PackageList1 xBluetoothController 1 x Fixingclip 1 x Key Chain 1 xSticker 1 x Instructions