One way car alarm details: Upgrade Vehicle Alarm System special vehicle alarm with orginal remote control 1. Arm / disarm / lock / unlock remotely 2. Mute Arming / Automatic (Re)-arming 3. Shock sensing and alert. 4. Trigger ( intrusion) Record 5. Emergency Override 6. Unclosed door warning 7. Power-cut-off memory 8. Power window output 9. learning code Components includings: one main unit, wire harness, six-tone siren, LED light, reset switch, engine cut-off relay with socket, shock sensor