Specifications:
Product Name: Car Head-Up Display (HUD)
Dimensions: 99.5mm x 65mm x 20mm (3.92in x 2.56in x 0.79in)
Operating Voltage: 5-25V
Operating Temperature: -20°C to +85°C (-4°F to 185°F)
Display Functions: Speed, Compass, Over-speed Warning

Features:
- Universal Compatibility: The HUD incorporates both GPS and BeiDou (BDS) dual-mode chipsets. Regardless of the type of vehicle, as long as there is gps coverage, the device functions seamlessly, making it adaptable for all cars.

- Precision GPS + BDS Dual-mode Chipsets: Offering real-time synchronization with both GPS and BeiDou signals, this HUD ensures flawless accuracy and high refresh rates without any delay. Capable of receiving up to 32 , it guarantees superior performance compared to single-mode devices.

- Automatic Brightness Adjustment: Engineered with advanced automatic light-sensing technology, the H4 HUD adjusts its display brightness according to environmental light conditions. Clear and visible during daytime while maintaining a soft and non-distracting glow at night, it ensures optimal readability at all times.

- Over-speed Warning Functionality: The HUD allows users to preset an over-speed warning threshold (default set at 120KM/H). When the vehicle exceeds this limit, the device emits a beep sound to alert the driver, promoting safer driving habits.

- Compact and Portable Design: With its sleek dimensions of 99.5mm x 65mm x 20mm, the H4 HUD is designed to fit perfectly on any dashboard without obstructing the driver's view. The compact design makes it easy to install and remove, catering to both temporary and permanent placement needs.

Package Included:
1 x H4 Main Unit
1 x USB Cable
1 x User Manual
1 x Reflective Film
1 x Anti-slip Double-sided Tape