Remotely lock / unlock your car. More easy way to control your car. Also with flashing alert. You can slso download APP to use your phone to remote control. Features: Remotely lock and unlock your car. With trunk release button. To help you find your car parking location. Flashing alert; With LED indicator. Universal suitable for all types of cars. You can slso download APP to use your phone to remote control your car. Specifications: Voltage: ± 2V(DC) Static current: ≤15mA Indicator current: 20mA Shock sensor current: <1mA Frequency: 433.92MHz Key Remote distance (Max.): about 50-80m BT receive distance (Max.): about 3-8m Package size: 13 * 10 * 6.5cm / 5.1 * 3.9 * 2.6in Package weight: 272g / 9.6oz Package List: 1 * Control Box 2 * Remote Controller 1 * LED Connection Wire 1 * Wire 1 * English User Manual