The HP Sprocket Z3Z91A White is a compact pocket printer that's specially developed to print pictures with your smartphone wherever you are. Download the HP Sprocket app to instantly print all your selfies and photos of memorable moments on self-adhesive 5x7.6cm photo paper with the push of a button. That way, you can make your memories tangible and stick them in an album right away. You can even print photos from social media like Facebook and Instagram. Complete your snapshots in the app by editing them with emojis, text, and filters. Connect the HP Sprocket to your phone using Bluetooth. Charge the integrated battery using the micro USB port. You can make about 30 prints on one battery charge, so the Sprocket is easy to use as well. On top of that, the HP Sprocket uses ZINK printing technology to print photos without ink. That's why you'll never have to replace cartridges, but only refill the printer with new paper.