Specifications︰ 1. 200m remote control distance and 1.5km return back distance 2. Remote controller with color printed LCD and green blacklight 3. Work frequency: 434MHz 4. Modulation: FM (FSK) 5. Mute arming mode, Sound mode and light mode 6. Opening the trunk by the remote controller 7. Warning for unlocked door 8. Remote arming/disarming 9. Anti-burglary & anti-hijacking 10. Locating the car in a parking lot by sound and light 11. The lowest possibility of power consumption,battery size: "AAA" 12. Water proof and shock proof 13. Automatic & Standard transmission 14. Valet mode 15. Trunk releaseRemote transmitter is optional.