Easy to Use: Use the mobile app to scan a negative or slide and turn it into a color photo that can be saved directly to your phone album for sharing. App Store Support: Before scanning slides and negatives, download the scanning application to your phone. We recommend the SlideScan app (for scanning slides) and the FilmBox app (for scanning negatives). Adjustable Brightness: Three brightness levels can be set for different scenes, and the brightness can be adjusted by flicking the switch. USB Power: The package comes with a USB power cable, you can use your computer, laptop, mobile power supply, USB adapter, mobile phone charging head and so on to power it. Slide Viewer Light Pad: LED Light Pad Slide Viewer, A4 size, scan multiple photos, slides, positives and negatives at once with your phone, save and upload to any social media.