Learning code: Long press learning button 3 seconds,turning light flashes for a long time,enter learning code state,in 10 seconds,presss any button,turning light flash once,if learn one more,press any button,turning light flash twice,and by this analogy,four remote control can learning at the same time. Features: Remotely lock and unlock your car. With trunk release button. Comes with 4 door lock actuator. To help you find your car parking location. Flashing alert. Universal, suitable for all types of cars. Specifications: Control box size: approx. 9 * 6 * 2.5cm Remote controller size: approx. 6 * 3.4 * 0.8cm Voltage: 12V ± 2V(DC) Static current: ≤15mA Indicator current: 20mA Shock sensor current: <1mA Frequency: 433.92MHz Remote distance (Max.): about 50-80m Package size: 25 * 15 * 8cm / 9.8 * 5.9 * 3.2in Package weight: 940g / 2.1lb Packing List: 1 * Control Box 2 * Remote Controller 4 * Door Lock Actuator 1 * Wire 1 * Set Installation Accessory 1 * English User Manual