8 Functions: 1. Auto door lock when driving; 2. Door unlock when stopping; 3. Hazard lights flash when door is opened; 4. Hazard lights flash when shifting to R (reverse); 5. Auto unlock in case of sudden braking; 6. Headlight answer-back when locking; 7. Headlight answer-back when unlocking; 8. Door lock while engine is on. Compatible models: N-BOX Custom JF5 JF6 R5.10～ (Please note: Not compatible with N-BOX) Improved safety & convenience: Automates door locking and hazard lights, enhancing safety and convenience! Mode switching: You can customize the timing of door lock and unlock operations, and the on/off function of hazard light flashing. Easy installation: Completely plug-and-play, just connect it between the original connectors, no troublesome wiring work like tapping is required.