Features: 1.Mini and cute appearance, small and light body, can be placed in a pocket or bag for easy carrying. The best gift for students, office workers, lovers, friends, family 2.The product support printing via wireless BT connection with smartphone 3.A printer with a good-quality print head, which can print 57mm width x 30mm roll diameter thermal paper with a resolution of 200DPI and good print quality 4.Print all the content you like, support multiple functions, can print photos, labels, messages, lists, subject problem solving, etc. 5.Used for printing test paper, picture and photo, self-adhesive, English-Chinese dictionary learning label, problem solving for all subjects from elementary school to high school, etc. specification:Item Type: Wireless BT Thermal Printer Model: SK-S9 Material: ABS Color: Blue Connection Method: Wireless BT Printing Parameters: 200DPl Printing Method: Thermal inkless black and white printing Battery Capacity: 7.4V 800 mA lithium battery Printing Paper: Width x Roll Diameter: Approx. 57 x 30mm / 2.2 x 1.2in Used for printing test paper, picture and photo, self-adhesive, English-Chinese dictionary learning label, problem solving for all subjects from elementary school to high school, etc. PackageList: 1 x Printer 1 x Printing Paper 1 x Data Line 1 x User Manual