Features: Mini BT thermal receipt printer, 58mm paper width, max. 50mm roll diameter, 50mm print width, 90mm/s print speed, 203dpi resolution. Portable and lightweight, easy to carry, it doesn't need much space. Widely used in bill printing, post receipt printing, restaurant ordering information printing, shop receipt printing and so on. Adopting thermal print head, no need of ink cartridges or ribbons, low operation cost, clear printing, improve your work efficiency. Support BT and USB cable connection, compatible with iOS, Android, linux, Windows XP/Win7/Win8/Win9X/Win10/Win2000/Win2003/Win Vista system. Support 1D/2D barcode printing. You can download APP on your smartphone through the instructions in the manual. Built-in 2000mAh large-capacity rechargeable battery, it can print for a long time when fully charged, print receipts at any time. With USB interface, it is more convenient to load and more stable to transfer data. Specification: Model: POS-5811DD Product Size: 11.8 x 8.3 x 5.9cm/4.6 x 3.2 x 2.3in Weight: 260g/9.1oz Print Method: Thermal printing Print Head Life: 100 million pulses/dot, or 100km Resolution: 203dpi (8 dot/mm) Effective Printing Width: 50mm (384 points) Available Paper Width: 58 Add or subtract 1mm Paper Warehouse capacity: diameter less than or equa50mm Print Speed: less than or equal 90mm/s Power Supply: rechargeable lithium battery 2000mAh 7.4V Charging Method: External charger Power Charger: 5V-2A Printing Parameters: Support logo trademark printing, Support 1D/QR code printing Support barcode type: UPC-A/UPC-E / JAN13(EAN13) / JAN8(EAN8) /CODE39/ ITF / CODABAR / CODE93 / CODE128 ; QR Code Communication Interface: USB, BT2.0/BT 4.0 Driver: Win 9X / Win 2000 / Win 2003/ Win XP / Win Vista / Win 7 / Win8 / linux / Android/ IOS Use environment: -10-50 centigrade (temperature), 10-90% (humidity) Package Size: 18 x 12 x 7cm/7 x 4.7 x 2.7in Package Weight: 460g/16.2oz Note: 1. For iOS System, download"POS-PrinterV1.0" In App Store; For Android system, download the DEMO APP by scanning the QR code at the user manual, following the instruction in the manual to finish the installation. Packing List: 1 x Thermal Printer 1 x Thermal Paper Roll 1 x User Manual 1 x USB Cable