Built in Auto Remote Start Engine Function Built in start signal detection and control circuit Pre-turn on the air conditioner On appointment time auto start engine ( FM-8 transmitter ) Turbo timer delay function (delay 2 minutes TURN OFF engine to protect turbo engine) Reservation mode to prevent car parking in gear for hand gear car Built in trunk release function One stage shock sensor Shock sensor by-pass function Emergency disarm and reset Intelligent check and adjust start time, max to 6 times start engine Carrier modulation: FM - FM or AM-FM technology Remote feedback range to transmitter up to 1000-1500m Extra high light emerald green and blue LCD back light Two-way feedback confirmation, everything is under control Blue super bright LED indicator Engine immobilizer Ignition lock Auto re-arm function, Anti-theft and anti-hijack function 2 transmitter can alarm at the same time Keyless entry , central lock / unlock control car alarm Transmitter control arm disarm auto security system Use AAA 1.5V (No 7 Battery) Alkaline battery Battery life is about 1-2 month Double side PCB, full SMT technology One transmitter or two transmitter VH connector make the connecting strong Work with CCFM-1/2/3/4/5/6 and CCAM-3/4 transmitter Also can work with one way transmitter