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. Works with 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. Paper width: 57x30mm. Features a simple, stylish, compact design for easy portability. Avoid exposing paper to direct sunlight to prevent fading of printed text or images. Delivers high-quality, clear prints with optimized printing algorithms. Supports QR codes and sticker templates. Easily connects to smartphones for convenient mobile printing. Multifunctional mini thermal printer ideal for various uses including notes, receipts, labels, photos, logos, to-do lists, travel, work, home, and office applications. Suitable for personal, educational, and business use. A great gift option for children and adults alike. 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 User Manual in English. Additional products not included. Note: Lighting and display differences may cause slight color variations. Measurement tolerance: +/- 1-3 cm.