Features:<br> Multifunction Speedometer displays speed, clock, number of satellites, direction of travel, and other driving information directly in your line of sight. View essential data safely without looking away from the road, helping you stay focused and drive more safely.<br> Compatible with all vehicles, the G4S GPS Speedometer provides accurate MPH readings and driving time. Features an HD display with automatic light-sensing technology that adjusts brightness based on ambient lighting, ensuring clear visibility during both day and night.<br> Premium 2022 design includes GPS + Beidou dual-mode chips for fast refresh rates and no lag. Speed data is collected directly from satellites, independent of the vehicle’s engine, making it universally compatible with cars, trucks, SUVs, motorcycles, and other vehicles.<br> Enhances driving safety by displaying speed and key information at a glance. Reduces distractions by eliminating the need to look down at the dashboard. The head-up display projects clearly at any set angle, allowing you to keep your eyes on the road.<br> Simple installation: Mount the device near the dashboard or use the 360-degree rotating suction cup on the windshield. Plug and play via the cigarette lighter USB cable. Automatically powers on and off with the vehicle’s ignition. Note: This device relies on the vehicle’s power supply and does not retain distance data when the engine is off.<br> Certified by CE, FCC, and RoHS standards. Includes responsive customer support. For assistance, contact us via email and expect a response within 48 hours.<br> Specification:<br> Color: Green light<br> Screen size: 2.2 inch<br> Product dimensions: 52 x 52 mm<br> Box dimensions: 10 x 7.5 x 7.5 cm<br> Total weight: 150 g<br> Package contents:<br> 1 x HUD<br> 1 x USB cable<br> 1 x Suction cup mount<br> 1 x Double-sided tape<br> 1 x User manual<br> Troubleshooting Guide:<br> 1. No display or power: Check the USB cable for damage and replace if needed. Do not use a power source exceeding 5V.<br> 2. No speed reading: Flashing satellite icon indicates signal search. Move to an open area and wait for the icon to stabilize.<br> 3. Incorrect speed: Verify correct unit setting (km/h or mph). Vehicle dashboards may display speeds 5–7% higher than actual; adjust calibration if needed.<br> 4. Wrong driving direction: Direction is determined when speed exceeds 5 km/h.<br> 5. Speed shown when stopped: Signal interference in tunnels, underground parking, or shielded areas may cause drift. Drive to an open area to restore accuracy.<br> 6. Buzzer control: Press and hold the wheel dial to the left for 2 seconds to turn off the buzzer. Repeat to turn it back on.