Product function 1. Unique double voice reminder 2. No phone charges 3. Completely automatic operation 4. Remote open/close car doors 5. Remote monitoring 6. Remote police alert/oil cut-off/power off /voice frightening 7. Remote stop car to preventing robbery 8. Hidden police-alert switch/police alert quietly 9. Remote engine starter (optional) 10. Make phonecall Spec: 1. Mainframe size: 134MM*120MM*34MM 2. Mainframe: Working Voltage: 12V Static current: (including GSM model) 40mA-60mA Frequency: 300MHZ-350HMZ Cover range and managing capacity:same as the location GSM network Location precision: 10-300 m (according to the location GSM) Warning time: Till you disarm the system or pick up the alarm phone. 3. Whole unit NW: 1. 98KG, GW: 2. 08KG 4. ertificate:CE passed. 5.Warranty: 1 free-maintenance. GSM Car Alarm (LY-628) is the developed by FASHIONCAR and has been awarded patent right by the State Patent Bureau. This product has passed the quality examination of the Ministry of Public Security and obtained the production permit from the Public Security Department of Guangdong province. GSM Car Alarm (LY-628) differs greatly from GSM's way of sending short massages in that it transmits alarming signals through audio channel of the GSM network. It can offer timely and accurate service and thus realizing real-time monitoring and real-time alarming in true sense. Adopting American Microchip's KEELOQ hopping-code technology, FASHIONCAR GSM car alarm boasts up to 66 digits of coded serial numbers, making it impossible to copy and decode the ciphers, as it will take 28 years to come across a repeated cipher if one continuously presses the remote control every second. Mobile location function through GSM network enables owners to exactly locate his/her motor vehicles and conduct a real-time monitoring and tailing of the position of the car if it is necessary. (For this function, please refer to the local dealers)