The Polaroid Lab instant printer uses a 3-lens system to project a screen image from your phone, expose it to Polaroid film, and then develop the image into a Polaroid photo through a unique chemical process. You can also create a collage of up to 9 photos, or use AR technology to convert photos into videos through the APP. It has a 150mm fixed focus lens, aperture/variable speed shutter, and built in 1100mAh lithium battery. The Polaroid Lab instant camera uses a 3-lens system to project a screen image from a mobile phone, exposes it to Polaroid film, and then develops the image into a Polaroid photo through a unique chemical process, eliminating the need for scanning and printing. Polaroid photos available. You can also create a collage of up to 9 photos, or use AR technology to convert photos into videos through the APP. 150mm fixed focus lens Fixed aperture / variable speed shutter Built-in lithium battery 1100mAh Charging terminal: Micro USB Dimensions: 150x115.6x149.7mm Weight: 655g Applicable to iPhone 6 and later phones and most Android phones Suitable for i-Type photo paper and 600 type photo paper