Start safe and confident driving with the VJOYCAR speedometer. It displays the vehicle's speed in real-time with large digits. It collects speed data from GPS satellites and is suitable for various types of vehicles. Equipped with a high-refresh-rate 10 Hz chipset for smooth value updates. It syncs with the engine, automatically turning on and off with it. Special sun protection ensures clear visibility day and night, while the compact size allows easy placement on the dashboard. Built-in RAM and a dual-core processor maintain high performance, and the speedometer captures speeds up to 199 mph. Simple USB connection requires no setup.