General description Safe driving is essential, and the M6S HUD Head Up Display allows you to keep your eyes on the road without the need to lower your head to check the dashboard. Utilizing nano-technology, it eliminates double reflections for enhanced clarity. The device is easy to install by simply connecting it to the car's OBD port using the provided OBD cable, and it activates automatically when the engine is turned on. It features various alarms including overtime driving, low voltage, overspeed, high temperature, and engine failure, and allows you to switch between MPH and kilometers freely. Technical specifications Compatible with: OBD II compliant cars (post-2007 models) Installation position: Center console Display information: Speed, RPM, temperature, voltage, single driving distance, low voltage alarm, high temperature alarm, overspeed alarm Brightness: 5-level adjustment, automatic and manual modes Display modes: Mode 1: Speed + RPM, Mode 2: Speed + Temperature, Mode 3: