Features: 1.The audio system support answering the calls and can be controlled by mobile phone application. 2.Has the function of anti-slide and resistant to water. 3.Support USB playing and memory card playing ,can play mp3 format songs and radio. 4.The system support power cut memory function and equipped with a LED screen for information display. 5.The speaker is integrated designed with LED light strip on the back of the machine. Specification: Features: The audio system support answering the calls and can be controlled by mobile phone application. Has the function of anti-slide and resistant to water. Support USB playing and memory card playing ,can play mp3 format songs and radio. The system support power cut memory function and equipped with a LED screen for information display. The speaker is integrated designed with LED light strip on the back of the machine. Specification: Color:Black/Golden/Silver(Optional) Wiring Diagram: Red to Battery Positive Black to Igniting Control Green to Battery Negative Waterproof: Four-grade waterproof (spatter proof) is not damaged by water spatter in any direction. (PS: If you do not cover the waterproof cover, you can't achieve the waterproof effect. If it is raining, you can't stay in the rain for a long time, it may cause damage) Output Wattage:2x10W 6ohm Rated Voltage:DC12V Output Frequency Range:20Hz~20KHz Working Temperature:-30~+60 Control Distance Compatible with Bluetooth>=6m Phone Charging Current:800mA Standby Mode Current:15mA Length(Without Bracket):205mm / 8.07in Length(With Bracket):310mm / 12.2in Diameter:60mm / 2.36in Suitable for Handle Bar Distance of 25~28cm,Diameter of 2~2.2cm Package List: 1 x Audio System 1 set of Installation Accessory PackageList: