Feature: 1. CONVENIENT USB POWER: This car HUD is powered via the vehicle's USB port, automatically shutting down when the vehicle is turned off to prevent battery drain. Its compact design ensures it doesn't obstruct the driver's line of sight. 2. SAFETY ALERT SYSTEM: Featuring overspeed alert and fatigue driving reminder, this car digital speedometer provides essential safety reminders to help ensure a secure driving experience. 3. ADJUSTABLE LED DISPLAY: The HUD display showcases a bright LED cold light display with adjustable brightness and modern, large fonts, ensuring visibility in both daylight and nighttime conditions for easy reading. 4. COMPREHENSIVE PERFORMANCE: The Car HUD meter provides real time data on speed, distance traveled, elapsed time, altitude, and driving direction, carefully tracking your journey for a well rounded travel experience. 5. UNIVERSAL COMPATIBILITY: This HUD display is suitable for all vehicle types, including electric vehicles, motorcycles, gas powered vehicles, buses, and trucks, making it a versatile addition to any ride. Specification: Item Type: Car HUD Display Material: PVC Plastic Screen: LED Cold Light Display Applicable Vehicle Model: All Models Power Supply: USB Car Power Supply Built in Battery: No Water Resistant: No . Package List: 1 x Main Unit 1 x USB Cable 1 x Bracket 2 x Double Sided Tape 1 x User Manual