describe: 1. Remote control startup, remote control flameout, theft prevention and anti-looting. 2. Ultra low power consumption, patent design, will not waste batteries. 3. with its own anti shearing function, when the power or speaker line is cut off, remote control synchronous vibration to alert the owner.5. When there is alarms, the horn sounds, the remote controller synchronously alarms and vibration prompts, and the distance is within 300 m. 6. Quickly find your car in garage, among many vehicles, you can find their own car conveniently and fast with this device..7. Unique manual\/automatic switch function, 5 m from the car or 5 seconds after leaving the automatic, automatic lock, when you are close to the car within 5 meters, Press the car or open the door lock, automatic unlock, intelligent operation, safe and fast.8. Double lock function, automatic lock 5 seconds after parking, steering prompt, mute function, etc. It is to drive.9. One-button double-flashing function. When the vehicle has problems, press the button to make the steering light flashing, can be used as danger warning light. 10. The device, remote control is waterproof designed with .Explanation of 5 m automatic lock \/ unlock:1. Automatic lock when you are 5 m from the car or 5 seconds after leaving the automatic, the steering light will flickers.2. Within 5 meters from the vehicle, you can Press the vehicle or insert the key, the steering light flashes twice to inform that the automatic lock has been canceled.Product parameters:Type: Anti-theft alarmMaterial: ABS plasticcolor: BlackLoudspeaker alarm size: 125 DBFrequency remote control: 315.5 or 433 MHzWorking voltage: 12 VHost shell: waterproof design, beautiful appearance.Package Contents:1 x alertor2 x remote control1 x alarm hornOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.