Mini BT thermal receipt printer, 58mm paper width, 48mm print width, 50-80mm or s print speed, 203dpi resolution. Support BT and USB cable connection, compatible with iOS, Android, Windows system . Please download relative APP or driver on your devices. Adopting thermal print head, no need ink cartridges or ribbons, clear printing, low operation cost, thermal paper is easy to buy. Built-in 1500mAh large-capacity rechargeable lithium battery, about 4 hours charging time, about 4-5 hours continuous working time, print receipts at any time. Portable and lightweight, easy to carry, it doesn' don't need much space. Widely used in bill printing, post receipt printing, restaurant ordering information printing, shop receipt printing and so on. Specifications: Color: Black Material: Plastic Print Method: Line Thermal Printer Print Paper Width: 57mm0.5mm Printing Width: 48mm Resolution: 8dots or mm(203dpi) Print Density: 384 dot or line Print Speed: 50-80mm or s Roll Diameter: 40mm(max.) Printing Characters: ANK: 8x16,9x17,9x24,12x24 GBK: 24x24 Characters or Line: ANK: 48,42,32 GBK:24.16 Life Cycle Time: 50km(printing density under 12.5 percent ) or 100 million pulses Barcode Type: 1D: PC -A,UPC-E,EAN-13,EAN-8,CODE39,CODE93,CODE128,CODABAR,ITF25 2D: QR CODE,PDF417 Interface: BT or USB Paper Feeding: Easy Paper Loading Paper Cut: By Hands Print Command: Compatible with ESC or POS Built-in Lithium Battery: 1500mAh or 7.4V Charging Time: About 4 hours Operating System: Compatible with Android, iOS, Windows Working Temperature: -10 - 50 Working Humidity: 20 percent -85 percent Storage Temperature: 15-20 Storage Humidity: 45 percent -75 percent Item Size: 7.8 x 10.5 x 4.7cm or 3.1 x 4.1 x 1.9in Item Weight: 221g or 7.8oz Package Size: 15.3 x 12.6 x 6.8cm or 6.0 x 5.0 x 2.7in Package Weight: 350g or 12.3oz Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.