
FAQ - Frequently Asked Questions
📦 Orders & Shipping
-
Processing Time: 1-2 Business Days.( No shipments on weekends )
- Delivery Time:
3-7 Business Days from United States Warehouse;
7-15 Business Days from China Warehouse.
Special circumstances may cause delays, please understand
- Track My Order: Once your order ships, you'll receive a tracking number via email. You can use it to track your package at any time.
- Do I have to pay customs or import taxes?
For orders shipped from our US warehouse, no customs fees apply.
For international shipments, customs duties may apply depending on your country's regulations. These are the buyer's responsibility.
↩️ Returns & Refunds
- What is your return policy?
We offer a 30-day return policy. Items must be unused and in original packaging. Please contact us at jhy90250@gmail.com to initiate a return.
- My item arrived damaged. What should I do?
Please contact us within 48 hours of delivery with photos of the damaged item. We will arrange a replacement or full refund promptly.
📬 Contact & Support
- How can I contact customer support?
You can reach us at jhy90250@gmail.com. You can also click the icon in the bottom right corner to contact us online. We respond within 48 Hours.
- Do you offer a warranty?
Yes, all our products come with a 12-month warranty against manufacturing defects. Please contact us if you experience any issues.
Drive Safer. See Your Speed Instantly — Without Looking Down
Green or White LED Light for Your Optional
Get Real-Time GPS Speed Display
Automatic Brightness for Day & Night Driving
See Your Speed Without Looking Down
Works on Any Car with a USB Power Port (5V)
Simple 4-Step Installation
- Plug the USB cable into your vehicle; (Tips: Use our original OEM power cord for stable regulated voltage; third-party cables may cause startup failure.)
- Place HUD on dashboard;
- Stick reflective film on windshield;
- Wait for GPS signal → Drive.
What’s in the Box
FAQ
Does it do MPH and KM/H?
- No, the speed unit cannot be adjusted
Is this car head up display wireless?
- No. This is a USB-powered car HUD, not a wireless or factory-built system.
Why does the screen sometimes show "__" or no speed?
- This usually means the Car HUD is temporarily not receiving Gps signal. Please drive in an open area with a clear view of the sky.
- Please use our provided cable, not yours. Because the current of the power cord is different
Will it work in tunnels or underground garages?
- This is a GPS-based heads up display for cars, so signal may be temporarly lost in tunnels or underground garages. This is normal for all Gps devices
Why do I see a double image on the windshield?
- This is normal if you aren't using the reflective film.
- Solutions: Clean the area on the windshield and apply the reflective film that came with the HUD. This will focus the projection into a single, clear image.
Can I calibrate the speed reading?
- No. K1 HUD does not support speed calibration.
- The speed is calculated directly from GPS data for simplicity and ease of use.