Features:  58mm portable thermal receipt printer, strong compatibility, support BT function or USB cable connection, compatible with Windows 7/10, Android, iOS system. Please download relative APP (For Android system, support caysnprinter Loyverse, BT Print, Kyte, RawBT; For iOS system, support POS-printer, Kyte, Kahero POS, Utak.) or driver on your devices. Compatible ESC/POS print commands.  203dpi resolution, support max. 40mm roll diameter, reduce paper change times. Easy to load paper. 57±0.5mm paper width, 48mm effective print width, 80mm/s max.print speed, high efficiency and clear printing.  Direct thermal printing, no ink cartridge, environmental protection and money saving. Compared with dot matrix printer, it is smaller and quieter.  The built-in 2600mAh rechargeable lithium battery has long standby time and can print continuously for 1 hour with one full charge. Wireless connection, print anytime and anywhere.  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.    Specification:  Model: JK-5803P  Color: White, Black (Optional)  Size: 8.2 x 8.7 x 4.2cm  Weight: 150x124x66mm/5.9x4.8x2.6in  Printing Method: Line Thermal  Printing Width: 48mm  Resolution: （8dots/mm，203dpi）  Point Per Line: 384 dots/Line  Printing Speed: 50-80mm/Second  Paper Width: 57±0.5mm  Paper Roll Dia.: ≤40mm   Paper Feed Method: Easy feed (Clameshell feed)  Commands: ESC/POS  Interface Type: USB, BT2.0+4.0  Character: Chinese character (support GBK), International character set, ascii, Bar code, CODE39, EAN13, CODABAR, CODE93, ITF, CODE128, QR code Graphics  Paper Loading Method: Easy Paper Loading  Battery: 2600mAh Lithium Battery  Charging Time: About 4hrs  Discharging Time: 1hr  Package Size: 15 x 12.4 x 6.6cm/5.9 x 4.8 x 2.6in  Package Weight: 390g/13.7oz    Note:   1. Please download the driver via http://www.dgkinkon.com/res/soft/2021/b2b7e8617220caa3.zip  2. Suitable for smartphone APP-Loyverse (Retail/Clothing),  iREAP(Retail/Inventory), CasierStock(Shopping/Inventory Management), Kyte(Mobile Sales), etc.  Please make sure your cellphone is compatible with these softwares.    Packing List:  1 x Thermal Printer  1 x User Manual  1 x USB Cable  1 x Thermal Paper Roll