1.The latest model, with beautiful and generous appearance, and has stable performance. 2.Universal product, suitable for all car for Android DVD players, and suitable for all 2 din car DVD players. 3.Wireless remote control player, allows you to answer calls, and you can add subtitles, bring much convenience . 4.All main functions can be customized to set its functions, a total of 6 buttons can be customized to set functions. 5.Improve driving , easy to install, no complicated tools required, save your precious time and effort. If your car DVD player has steering wheel control function, this product will be suitable for your car DVD player use. Suitable For Car: it is Universal ,It is suitable for most of the rear-mounted navigation on the market. Installation Instruction: 1.Unload the DVD player. 2.Pls find the steering wheel key control plug (key 1, key2) and ACC with ground wire of the DVD player. 3. Then checking the note of each color line for the remote receiver: A. as ACC+ B.GND wire as black ground- C.Orange( key 1/ SWC 1/AD1) D.Grey( key 2 swC 2IAD2) Find the steering wheel control plug of the vehicle,and connect it to steering wheel control wire block. If the DVD player only have one steering wheel control wire, pls connect the Orange & Grey wire to this line. 4.When the wires are connected, go to DVD player steering wheel setup menu, press the keys on steering wheel for three seconds, select the Corresponding functions on the screen. Then itswill have difference color when study success, Last, pls go to the DVD main page test controlwhen setting. -NOTE- Pls connect right for coatrol ACC with Ground wie cable,and wrapped wilth insulaling tape,or is will Short Circull Colour:Black Material:plastics Package Contents: 1 x Car Steering Wheel Control Button Only 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.