Name: VT-500TWL Introduction: 1. Remote control door lock/unlock 2. Jumper option for +/- trunk release output 3. Jumper option for electric lock/pneumatic lock 4. Car locating  5. Flash light output 6. Negative power widow output 7. Output for connecting your existing siren 8. Outside code-learning button 9. Double -sided PCB 10. LED status indicator 【Close】