Remote car central opening / closing kit with universal remote control, suitable for all vehicles. Convenient opening and closing of doors with the remote control. Already from a distance, the doors open and you no longer have to approach your car and search for the lock in the dark or in the rain. . For vehicles that have already installed the central locking kit with key opening, but who want to add remote controls for remote opening. Also equipped with trunk opening option, anti-burglary. Contents of the delivery : 1 control box Wirings, 2 remote controls, English instruction manual with application diagram 1. Press the lock button on the remote control once, the door is locked, the turn signal flashes once, the horn sounds once, the LED light flashes, and the window up signal output is 25S. 2. Press the unlock button on the remote control once, the door is unlocked, the turn signal flashes twice, the horn sounds twice, and the LED indicator does not light up. 3. Long press the rear box button or the fourth button on the remote control, the rear box signal is output, and the rear box function is opened. This model is a negative rear box output. Some cars have a positive rear box , and a relay needs to be added to convert it into a positive tail box signal. 4, long press the unlock button, you can also open the tail box function 5. Electric locks and pneumatic locks can be selected by jumping the pins on the board line. The default is electric locks (0.5 seconds) 6. Press the third or fourth button of the remote control once, the direction indicator light flashes 3 times and the horn sounds 3 times to realize the car search warning function. Product size: 13 x 9.5 x 6.5 cm. Product colour: black Scope of delivery: five pieces.