This printer is mini and portable. You can easily put it in your pocket or a bag, convenient to carry on and use it anytime, anywhere Bluetooth connection and APP operation, just connect your phone's Bluetooth to operate and print all kinds of beautiful photos you want 200DPI high resolution, convenient to quickly printing different black and white images Perfect for printing anytime, anywhere, catering to your creative needs such as stickers, bullet journals, photos, pictures, memo, shopping lists, study plans and meeting notes It's also a practical gift for kids, students, families and friends Specification: Material: ABS Battery capacity: 800mAh Functions: Pictures, texts, web pages, accounts and other text printing functions, Bluetooth connection thermal printing Printing parameters: 200DPI Printing method: thermal, inkless printing black and white images Printing paper: 57x25 mm (purchase original printing paper for easy replacement) Connection method: Bluetooth APP: Tiny Print