A smart driving companion, one-touch control lets you control your vehicle with ease. Easy DIY installation for car owners: compact and exquisite, with superb performance. Easy installation by owners, removable and reinstallable at any time. Compatible with a wide range of models for enhanced compatibility. Quick, blind-touch design and sports-grade tactile buttons. Simple, quick, and accidental touch prevention allow drivers to control their vehicle with ease. High-quality, precise rotary knob adjustment. Quickly and precisely adjust volume, pause, or play. Multi-function buttons for smooth driving. and , providing a comfortable driving experience. Crisp, push-button design with push-button functionality. Nine button functions, including volume control, play, answer, voice recognition, and home screen. Easy installation, standard fit, and integrated design. Non-destructive installation, seamless integration with the original vehicle. Unwavering fit and native tactile feel. Note: The owner has two square control lines. please connect the decoding white control line to the pick up machine control line. If the navigation is turned off when there is a delay, please connect the red power cable to 12V. Please if your car dvd player can install the product before you install it 1.on your car dvd device it need has the function of study or setting steering wheel control) 2. It need to have the steering wheel control Wire on your car dvd cable. Searching way: on the car dvd it may has a diagram of the device connector,you can find the steering wheel control Wire, on the cable of the device it wil has a label on it, it always write on key1 key2,swc1,swc2,AD1,AD2 . Color: Black Material: plastic Package Contents: 1 x Wireless Multimedia Remote Control 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.