Quick overview from the supplier:
Compact Portable Printer Canon SELPHY QX20 KIT Grey, 287x287dpi, 3 ink, approx. 43 sec, Built-in Battery, Wi-Fi, USB, Dim. 102,2 x 143,3 x 31,0 mm, 445gr., Sticker paper 72x85 mm, 68x68 mm printable area,(10 pcs in set), Media: XS-20L 20 pages
