Many common issues like signal, sound issues, Bluetooth or WiFi connectivity, can be easily resolved. Consult the user manual and troubleshooting guide on the product detail page. Or reach out to us through the official address in the manual
1Auto Keystone Correction2Electric Focus 3145° Adjustable Projector4Dust-Proof Design1Enjoy Outdoor2Home TheaterThe video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Merchant Video Smart Screen AdaptionElectric Focus & Auto Vertical Keystone CorrectionWireless Connection5G+2.4G WiFi, Blutooth 5.2Display Resolution Maximum1920*1080 Pixels1080P Support Native Resolution1280*720P Projection Distance0.8-4 MetersThe recommended projection distance is 2-3M Projection Image SizeUp to 200 InchAspect Ratio16: 9/4: 3Throw Ratio1.36 : 1About Streaming ServicesDue to HDCP copyright restrictions, most projectors(includes S28) can not support play videos from Netflix, Disney+ or Prime via wireless mirroring directly from your phone. However, you can connect it with Fire TV Stick(not included,but less expensive) , Laptop, or PC to enjoy these videos with seamless and versatile experience.Which TV Stick we recommend?S28 mini projector is compatible with Fir* TV Stick Lite, Fir* TV Stick Standard and Rok* Express. These affordable ones can meet your streaming needs effectively. 4K TV sticks are more expensive and require an HDMI input that supports HDCP 2.2. Their compatibility is not as reliable as the simpler options mentioned above.About Electric Focus FunctionJust simply press the "F+" or "F -" button on the remote control, you can quickly and easily obtain clear videos and images. The key is to achieve a balance where the entire projection is clear, rather than over-sharpening one particular area.About Auto Keystone CorrectionWhen the projector is facing the wall at an angle of no more than 30 degrees in vertical direction, the automatic vertical keystone function will work great. Conversely, greater angles may affect the performance.Display Movie but No Sound?1)The projector does not support Dolby Sound, DTS, 5.1-channel, HDMI CEC, ARC. Make sure turn off any Dolby settings on your connected devices.2) Try playing different videos using other speakers. Certain versions of Bluetooth speakers may not work well with the projector.Why Choose S28 WiFi Projector?1)145°Adjustable Stand for Better View;2)Electric Focus & Auto Keystone & 100%-50% Zoom; 3)Ultra Fast 5G+2.4G WiFi & Bluetooth 5.2; 4)1080P Support & 300ANSI Brightness; 5)Support Wireless/Wired screen mirroring for IOS, Android, Windows How can I troubleshoot quickly? PUTRIMS S28 Mini WiFi Projector Elevates your Home Theater Experience Auto Keystone Correction Electric Focus Easily to Projection to Wall Ceiling or Floor hero-video SPECIFICATIONS & IMPORTANT NOTICE