1.[Setting By Free APP]: With the Slide Scanner, you can use the app to capture, crop, rotate and filter photos, or adjust the color and contrast, and then share them on social media. 2.[Easy Conversion]: The mobile film scanner lets you scan and play with old 35 mm films & slides Using Your Smartphone Camera. It compatible with 35 mm/135 mm slides and negatives. With Slide Viewer for Old Slides, you can easily convert old 35 mm/135 mm film and slides from your smartphone at home. 3.[Easy to Operate]: Insert a slide or negative into the tray, turn on built-In LED back light, place the lens of your smart phone over the hole and then click to capture. Please note: the quality of photos will be limited to the resolution of your phone's camera. 4.[ Design]: This film scanner is fold-able and do not take up much room, you can fold it into the size of a small box, so it's very convenient to storage and travel. You can download the app by scanning the code on the product box and use App to capture, crop, rotate and filter.