... mainframe, 1 siren,1 wiring, 1 spare battery, 2 remote controlsFrequencyCustomized(303M,315M,390M,433M,433.92M(Hz),etc.)Net ... . Several kinds of finely remotes (optional ) 2. Remote arming / disarming 3. Remote engine start/ stop 4. Waterproof mini-mainframe Function5. ... Low power consumption 7. Engine immobilization/Anti-hijack 8. Remote control adjust sensitive 9. Function can be changed by customer ...