Function 1. Remote control a. Arm/disarm b. Lock/unlock c. Car finding d. Trunk release e. Emergency help f. Enable/disable shock sensor g. Siren temporary disable h. Start/stop engine 2. Phone a. Arm/disarm b. Lock/unlock c. Enable/disable shock sensor d. Active/deactivate immobilizer e. Check the status of car (latitude, longitude, and car speed and car direction) f. Broadcast to the driver g. Listen in the car I. Remote start/stop engine h. Control the car by SMS Technical Specification GSM frequency: 900MHz&1800MHz Voltage: 12V Temperature: -20-+65 Control distance: 20m-100m Remote frequency: 315-316MHz