1. Support Android / Wince Car Multimedia Player2. Mute, Volume, and /up, phone answer and hang up program ( Music, video, Radio,bluetooth ...)3. Sticker fixed on car steering wheel4. Cable connect with SWC key cable of car multimedia player5. Easy installation , after wires connection, enter the SWC interface of car multimedia player ,and study the wire connectionUniversal Steering wheel ControllerTips:1. The product is not a portable remote controller , and can not work any tablet PC , Home TV , or car headrest , roof mount monitor ... . it just work the function as Car steering wheel control button.2. The product can work with wince car radio , or android car radio . if your car radio has steering wheel control function , our product can work , and control the button for bluetooth , radio , music or video after study3. If your car radio do not have steering wheel control function ,please do not buy , our product could not work.Knowledges for installation:1. before installation , please switch off your car power ,and avoid to burn the electronics board when making wrong wire connection2. White ground control wire, black ground wire3. after wire connection , please enter in the menu interface of steering wheel control on car radio screen,and set up these soft buttons on learning , click the soft button on car radio screen ,and then press the corresponding physical button on steering wheel control button . repeat to pair the buttons one by one.Colour:BlackMaterial:ABSPackage Contents:1 * Car Steering Wheel ButtonsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.