Yescom Vehicle Security Paging Car Alarm 2 Way LCD Sensor Remote Engine Start System Kit Automatic 2-Way LCD Remote Control Security System, over 3000ft two-way FSK communication range Code hopping technology for anti-scanning and anti-grabbing Long range remote start with gear position checking Door/hood /trunk sensors; Automatic window rolling-up Due to the complexity of this system, car alarm system should be installed by authorised dealer only.(Bypass module EXCLUDED)