Specification:Brand: GEYIRENModel: P17Name: Car Head Up DispalsySize: 125mm x 68mmKindly AttentionOBD Mode Working Voltage: 11V~18VDC (12Vdc/200mA), When Voltage Is Higher Than 24v, Please Use A USB Cable For GPS Mode.This Product Is A Dual System (OBD2+GPS):the Screen Flickers After Power On, Press Button To Select OBD2 Or GPS System, If Without Operation,it Will Automatically Enter The Last Selected System After 5 SecondsFeatures:– Clear and vibrant 4.3-inch LCD display for easy readability.- Universal design compatible with all car models and brands.- Simple installation with a reliable suction cup for quick setup.- Real-time display ofimportantdriving information, including speed, RPM, and fuel consumption.- Smart brightness adjustment for enhanced visibility in all lighting conditions.Package Includes:1x P17 Car HUD Display1x Rotary Suction Cup Mount1x OBD Cable1x USB Cable1x Sticker1x User manual