Features: Mini BT thermal receipt printer, 58mm paper width, 48mm print width, 50-80mm/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'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: 57mm Add or subtract 0.5mm Printing Width: 48mm Resolution: 8dots/mm(203dpi) Print Density: 384 dot/line Print Speed: 50-80mm/s Roll Diameter: 40mm(max.) Printing Characters: ANK: 8x16,9x17,9x24,12x24 GBK: 24x24 Characters/Line: ANK: 48,42,32 GBK:24,16 Life Cycle Time: 50km(printing density under 12.5%)/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/USB Paper Feeding: Easy Paper Loading Paper Cut: By Hands Print Command: Compatible with ESC/POS Built-in Lithium Battery: 1500mAh/7.4V Charging Time: About 4 hours Operating System: Compatible with Android, iOS, Windows Working Temperature: -10 centigrade ~50centigrade Working Humidity: 20%~85% Storage Temperature: 15 centigrade ~20centigrade Storage Humidity: 45%~75% Item Size: 7.8 * 10.5 * 4.7cm / 3.1 * 4.1 * 1.9in Item Weight: 221g / 7.8oz Package Size: 15.3 * 12.6 * 6.8cm / 6.0 * 5.0 * 2.7in Package Weight: 350g / 12.3oz Notes: 1. SuitableforsmartphoneAPP-Loyverse(Retail/Clothing),iREAP(Retail/Inventory),CasierStock(Shopping/InventoryManagement),Kyte(MobileSales),etc.Pleasemakesureyourcellphoneiscompatiblewiththesesoftware. 2.If the APP is connected to anIOS mobile phone, please enter the BT connection from the APP. The Android phones can connect directly to BT function. Packing List: 1 * Printer 1 * USB Cable 1 * Thermal Paper Roll 1 * User Manual(English)