Description Are you looking for a set of professional, yet affordable car alarm system? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional car alarm system must meet you needs. It is one of the best choices for you. Features - Color: Black.- Material: Plastic.- Size: About 8.5x6.5x2.5cm/ 3.34x2.55x0.98 inch.- Powerful motor, long life. It can be simply installed with professional operation.- Universal version fits for most DC12V on the market. You can easily replace the old one.- Siren will go on, beacuse the device is triggered illegally. And its sound is loud.- Remote unlock or close lock, and automatic lock. Common fuctions is included.- A set of great car anti-theft system, very professional and practical. Specification - Main Engine Technical Reference:- Working Voltage: 8-16V.- Static Current: 8ma.- Working Frequency: 433.92MHZ.- Technical Reference:- Static Current: 0mA.- Transmitting Power: <10mW.- Transmitting Current: <10mA.- Work Voltage: 6VPacking list: 1 x main engine2 x remote control2 x wire