Head Up Display, ACECAR Universal GPS HUD for Car, Speedometer USB Interface, Speed, Driving Direction, Overspeed, Clear Fault Code, for All Vehicles Features: Product Name: head-up display Weight: 0.29LB Color: Black Product Size: 3.39*1.46*0.63IN Packaging Size: 4.92*3.35*1.73IN Function: vehicle speed/water temperature/voltage/single driving mileage Alarm: overspeed alarm/water temperature alarm/voltage alarm/fatigue driving reminder/fault alarm Product WORKS FOR ALL VEHICLES: Unlike other car head-up displays, this HUD is a dual-mode GPS+BeiDou chip, so you don't have to worry about COMPATIBILITY PROBLEMS and latency issues. This HUD is compatible with all vehicles around the world, with fast speed refresh and no latency. Simple DISPLAY: Vehicle speed + driving direction, HD display, practical function, allows you to drive more comfortably for a long time. Nanotechnology, high-definition projector, eliminates unwanted reflections and makes the displayed information clearer. It comes with a hood, covering the display panel lights, no glare when driving at night. DRIVING DIRECTION - Features a GPS navigation direction compass to assist the driver by indicating directions. Equipped with light-sensitive elements that can adjust their own brightness according to different lights, it can be very clear in bright light, providing a safer day and NIGHT DRIVING EXPERIENCE. PLUG & PLAY: Plug and play, you only need to connect the HUD to the car with the included USB cable, no professional installation is required. It automatically synchronizes power on and off based on engine ignition. Quality Tips - The working voltage of this speedometer is 5V, it is forbidden to use a voltage higher than 5V to supply power. FCC RoHS certification, superior quality. The product contains: 1X Head Up Display 1XOBD line 1X reflective film 1X double-sided tape 1X instructions