The built-in machine supports 57x30mm roll paper. Compatible with label paper and sticker paper, which must be purchased separately. Connects via Bluetooth 4.0 to the "Jingle" app for wireless printing. Supports Android 4.0 and iOS 8.0 or later. Press the gray button on the side of the printer for 3 seconds to power on before connecting. Features a simple, stylish, compact design suitable for portable use. Paper should not be exposed to direct sunlight, as printed text or images may fade. Offers high-quality, clear printing with optimized printing algorithms and close paper contact. Includes various QR code and sticker templates for smartphone printing. Multifunctional mini mobile printer ideal for use with smartphones, supporting photos, stickers, logos, travel plans, work notes, to-do lists, receipts, business, home, office, and eonal applications. Suitable as a gift for children. Color: White. Material: ABS. Dimensions: 8.31 x 8.31 x 4.06 cm. Package includes: 1 x Printer, 1 x Printing Paper, 1 x USB Cable, 1 x English Manual. Additional products not included. Note: Lighting and display differences may cause slight color variations. Measurement error allowed within +/- 1-3 cm.