Advanced thermal printing technology, no ink cartridge, convenient and cost-saving. The imported print head, good printing effect and has a long service life. Built-in 1000mAh lithium battery, 4 rolls of paper can be printed continuously at one full charge. USB universal charging port, easy to use.Pocket Printer: Small and lightweight, easy to carry. 57mm paper width, 200dpi resolution, smooth and clear print, meet your various printing needs.Wireless Connection: Support BT wireless connection with smartphone APP, compatible with Android and iOS, you can print anytime and anywhere. USB connection is also supported, compatible with Windows and Mac.Printing All You Like: Handheld wireless printer, support print photo, picture, receipt, memo, note, label, sticker, etc. OCR text recognition, quickly convert picture to editable text.Specifications:Material: ABSPrinting Method: Thermal PrintingConnection: BT 4.0Resolution: 200dpiPaper Width: 57mmRoll Diameter: 30mmInput Voltage: DC 5V, 1ABattery: Built-in 7.4V, 1000mAh Lithium BatterySystem Supported: Android, iOS, Windows and MacItem Size: 8.3 * 8.3 * 4.5cm/ 3.3 * 3.3 * 1.8inItem Weight: 160g/ 5.6ozPackage Size: 12.3 * 10.8 * 5.2cm/ 4.8 * 4.3 * 2.0inPackage Weight: 240g/ 8.5ozPackage Included:1 * Thermal Printer4 * Thermal Paper1 * USB Cable1 * User's Manual(Chinese/English/Japanese/Korean/Thai)