No display on screen, no power

Check if the USB cable is damaged. Replace the USB cable for testing, and prohibit the use of voltages exceeding 5V.

The flashing power satellite icon indicates satellite search status for underground parking garages, tunnels, and overpasses. When obstructions prevent satellite connection, move the vehicle to an open area to restore normal operation.

After the vehicle stops, the speed will still be displayed.

Underground parking garages, tunnels, overpasses, and shielding may cause unstable signals and satellite drift. Please drive to an open area.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles

Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles

Product ID: 658198748

Details

Brand
YAOUZICN
Item Weight
5.28 ounces
Item dimensions L x W x H
3.92 x 2.56 x
Material
Acrylonitrile
Number of Items
1

🌙Auto-dimming for night comfort

🚗±0.5% GPS speed accuracy

🧭Real-time compass direction

Description

🚀 Elevate your drive with real-time HUD clarity — never miss a beat on the road!

GLOBAL READY - Switch easily between KM/H and MPH for seamless driving anywhere in the world.
CLUTTER FREE COCKPIT - HUD declutters your dashboard by projecting essential info right in your line of sight.
EFFORTLESS NIGHT VISION - Auto-dimming display adapts brightness to reduce glare and eye strain after dark.
PRECISION YOU CAN TRUST - Dual satellite GPS tech delivers speed accuracy within ±0.5%, keeping you confidently on track.
DRIVE SAFER STAY FOCUSED - Projects speed & direction on windshield, eliminating dashboard distractions.

The YAOUZICN H4 Car HUD is a compact, universal heads-up display that projects your real-time speed and compass direction onto your windshield. Featuring dual satellite GPS technology, it offers ±0.5% speed accuracy and an auto-dimming screen for optimal visibility day or night. Easily switch between KM/H and MPH to suit any region, making it the perfect upgrade for safer, more focused driving across all vehicles.

Specifications

ASIN	B0D97JWJX4
Best Sellers Rank	#1,096,688 in Automotive ( See Top 100 in Automotive ) #648 in Automotive Speedometers
Brand Name	YAOUZICN
Customer Reviews	3.6 3.6 out of 5 stars (19)
Item Dimensions	3.92 x 2.56 x 0.79 inches
Item Weight	5.28 ounces
Manufacturer	Yaouzicn
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Model	H4
Number of Items	1
Part Number	M23

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