HKFZ offers sunglasses, radio receivers, audio devices, computer accessories and power inverters, with guides for setup, everyday use, care and troubleshooting.
Find manuals and instructions for HKFZ sunglasses, radio receivers, audio devices, computer accessories and power inverters.
Choose the guide that matches your product model for setup, operation, care and troubleshooting. Features and specifications vary by model.
For warranty details or replacement parts, check the documentation included with your product or contact the seller.
Selected manuals from manuals+ curated for this brand.
Watch setup, installation, and troubleshooting videos for this brand.
Common questions about manuals, registration, and support for this brand.
Check the model number on your product, packaging or included documentation, then select the matching guide in this category. Instructions and specifications can differ between models.
Consult the paperwork supplied with your product or contact the seller through your order page. An official HKFZ support contact and warranty page have not been confirmed.
The available instructions specify folding the left temple first, then the right. Handle the glasses with both hands, avoid forcing the hinges and store them in a protective case.
No universal UV rating is confirmed in the available information. Check the labeling and documentation for your exact model and variant; tinted lenses alone do not establish UV protection.
An official product registration service has not been confirmed. Check the included documentation or ask the seller whether registration is required.
