Features: 1. Powerful Battery: This Bluetooths 4.0 receipt printer is built with a 1500mAh lithium?ion battery, also, with auto sleep and auto awake function to save electricity, standby time can reach 5 ? 6 days. The battery is removable, meets all?day demands. 2.1. Powerful Battery: This Bluetooths 4.0 receipt printer is built with a 1500mAh lithium?ion battery, also, with auto sleep and auto awake function to save electricity, standby time can reach 5 ? 6 days. The battery is removable, meets all?day demands. 3. Printer Compatibility: The 58mm Bluetooth receipt printer compatible with Android/iOS/ Windows for small business. 4. Lightweight and Portable: Small size, excellent structure, portable design, convenient to carry around, especially for outdoor working environments. You can put it in your pocket or hang on waist with free leather sheath. 5. High speed printing with 50?89.9 mm/s speed, advanced thermal direct technology prints without requiring ink or cartridges. specification: Material: Plastic Color: Blue, Orange Size: 11 x 8 x 5 cm, Paper width: 58 mm Weight: 260 g Plug: EU, US, UK Bluetooths version: 4.0 Battery: 1500 m AH/7.4 v Power adapter: DC12V / 1A Charging time: 2-4 hours Standby time: 100 hours Using time: 3 days Interface: power jack, mini USB Print speed: 50-89.9 mm/s Points per line: 384 points per line Paper thickness: 0.05-0.10 mm Paper width: 57 / -0.5 mm Print width: 48 / -0.5 mm Paper roll diameter: 25 mm Operating temperature: -10-50℃ Barcode type: UPC - A / E, EAN - 13 / 8, CODE39 / 93 / 128, TIF, CODABAR; 2D: QR code, PDF417 Internal characters: ASCII CH ( 8 x 16, 9 x 17, 9 x 24, 12 x 24 ); GB18030 ( 16 x 16, 24 x 24 ) PackageList:Package Include: 1 x Bluetooths Receipt Printer 1 x USB Cable 1 x Power Adapter 1 x Roll Thermal Paper 1 x Instruction 1 x Drive Disc