Specifications: Color: Orange, Blue (Optional) Print Method: Thermal line printing BT Version: 4.0 Battery:7.4V, 1500mAh Charging Time: 2-4 hours Standby Time: 100 hours Print Speed: 50~80mm/s Resolution: 203dpi ( 8dots/mm ) Paper Type: Thermal Paper Paper Thickness: 0.05 - 0.10mm Paper Width: 57mm +/- 0.5mm Print Width: 48mm +/- 0.5mm Rolling Paper Diameter: ≤40mm Barcode Type: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF25, CODEBAR, CODE93, CODE128, QR code, PDF417 Working Temperature: (-10-50)℃ Storage Temperature: (-20~70)℃ Supporting Image Formats: JPG, BMP, TIF, JPEG, etc. Supporting System: Android, IOS, Windows (through USB) Item Size: 10 * 7.5 * 4.5cm/ 3.9 * 2.9 * 1.8in Item Weight: 190g/ 6.7oz Note: The driver download link: http://www.xmjprt.com/bbx/2457747-2457747.html. Please download the software before use, and Printer X is recommended. After downloading, you can connect BT in the software. (smartphone cannot be directly matched) The battery is covered with insulating tape, please take it off before use. Package List: 1 * Printer 1 * USB Cable 1 * User Manual (Chinese, English)