Specification:Name: 11 keys long bright square control car steering wheel remote controlMaterial: rubberSize: 12.3*3.3*4.7CMModel: High-end configuration (intelligent backlight)Lighting: backlight automatically light up at nightAdaptive: 98% of the modified navigation on the market can be usedTransmission mode: high-frequency encrypted signal + receiverWorking voltage: 12V car)-24V (truck)Battery: lithium batteryInstallation: Non-destructive mounting on the card, can be installed in any steering wheel position, can be applied moreNo need to paste: prevent the paste from warping, deforming and falling off under high and low temperaturesNo need to cut holes: non-destructive installation is quick and easy, will not damage the original steering wheelIncludes 2 batteries and a Micro USB cable for charging the remote control with batteries and charging the batteries separately.The module has 5 wires thatGreen (ANT) antenna is not connected to anythingRed (ACC) connects to the DVD navigation ACC power cableBlack (GND) connects to the DVD navigation cableWhite (Kay1/2) connects to DVD navigation side control harness (AD1/2, SW1/2)Note: If Kay 2 only, then both white wires of the module are twisted together with the radio.Business scope: car, van, van, electric car, large screen, small screen, universal machine navigationPackage Includes:1 * steering wheel controls1*Universal wiring harness1*USB harness