Features: 1.Supplied with 2 LCD remote controls, high sensitivity, the maximum remote control range is 100m/328.1ft. 2.Supports automatic central door lock, automatic window roll?up, multiple user?programmable functions, and automatic recording of parking time. 3.With door hood trunk sensor (support mains), programmable auxiliary output (support power window and central door lock). 4.With parking warning, the indicator light will flash for 25 seconds when opening the door after parking, to warn other drivers to avoid accidents. 5.Support mute fortification, mute disarm, automatic defense, emergency alarm and trigger alarm prompt, etc. Specification: Item Type: Car Security Alarm System_x000D_ Material: ABS _x000D_ Lifespan: 2 years_x000D_ Voltage: 12V_x000D_ Remote Control Distance: 100m/328.1ft_x000D_ Remote Control Frequency: 315-433.92Mhz_x000D_ Working Temperature: 80_x000D_ _x000D_ Main Function:_x000D_ 1. Mute fortification_x000D_ 2. Mute disarm_x000D_ 3. Automatic defense (programmable)_x000D_ 4. The door is not closed promptly_x000D_ 5. Emergency alarm_x000D_ 6. Trigger alarm prompt_x000D_ 7. Automatic secondary re-defense (programmable)_x000D_ 8. Find car_x000D_ 9. Car repair mode_x000D_ 10. Emergency release switch to disarm_x000D_ 11. LED indicator_x000D_ 12. With the function of opening the trunk_x000D_ _x000D_ Battery: Button Battery (built-in)_x000D_ Model: CR2025_x000D_ Capacity: 150MHA_x000D_ _x000D_ Installation Notes:_x000D_ 1. Check whether the car line is suitable._x000D_ 2. If suitable, connect according to the wiring diagram in the installation manual._x000D_ 3. Installation and use Note: Please note that the bracket of this product will be sent randomly, please make sure you don't mind before ordering.