Specification: Name: 11 keys long bright square control car steering wheel remote control Material: rubber Size: 12.3*3.3*4.7CM Model: High-end configuration (intelligent backlight) Lighting: backlight automatically light up at night Adaptive: 98% of the modified navigation on the market can be used Transmission mode: high-frequency encrypted signal + receiver Working voltage: 12V car)-24V (truck) Battery: lithium battery Installation: Non-destructive mounting on the card, can be installed in any steering wheel position, can be applied more No need to paste: prevent the paste from warping, deforming and falling off under high and low temperatures No need to cut holes: non-destructive installation is quick and easy, will not damage the original steering wheel Includes 2 batteries and a Micro USB cable for charging the remote control with batteries and charging the batteries separately. The module has 5 wires that Green (ANT) antenna is not connected to anything Red (ACC) connects to the DVD navigation ACC power cable Black (GND) connects to the DVD navigation cable White (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 navigation Package Includes: 1 * steering wheel controls 1*Universal wiring harness 1*USB harness