Features: Display: Fog light, Brake warning light, Seat belt indicator, Time, Width indicator light, High/low beam light, Door indicator, Left/right turn signal, Gear position display, Parking light, Vehicle speed display, Vehicle speed unit, Remaining battery percentage, Energy progress bar. BT Connection: The HUD and the smart phone are connected wirelessly via BT, and the navigation information is displayed synchronously through the APP. Multi-alarm Function: Speeding alarm, low voltage alarm, low power alarm, alarm when car door is not closed, seat belt is not fastened and brake warning light alarm. No Ghosting, AI Photosensitive: Comes with reflective lens, no need to paste film, no ghosting. Clear during the day, soft and non-glare at night. Fast data transmission, good performance. Plug and play, easy to operate.