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: BlackMaterial: PlasticPrint Method: Line Thermal PrinterPrint Paper Width: 57mm±0.5mmPrinting Width: 48mmResolution: 8dots/mm(203dpi)Print Density: 384 dot/linePrint Speed: 50-80mm/sRoll Diameter: 40mm(max.)Printing Characters: ANK: 8x16,9x17,9x24,12x24   GBK: 24x24Characters/Line: ANK: 48,42,32   GBK:24,16Life Cycle Time: 50km(printing density under 12.5%)/100 million pulsesBarcode Type:1D: PC-A,UPC-E,EAN-13,EAN-8,CODE39,CODE93,CODE128,CODABAR,ITF252D: QR CODE,PDF417Interface: BT/USBPaper Feeding: Easy Paper LoadingPaper Cut: By HandsPrint Command: Compatible with ESC/POSBuilt-in Lithium Battery: 1500mAh/7.4VCharging Time: About 4 hoursOperating System: Compatible with Android, iOS, WindowsWorking Temperature: -10 ℃~50℃Working Humidity: 20%~85%Storage Temperature: 15℃~20℃Storage Humidity: 45%~75%Item Size: 7.8 * 10.5 * 4.7cm / 3.1 * 4.1 * 1.9inItem Weight: 221g / 7.8ozPackage Size: 15.3 * 12.6 * 6.8cm / 6.0 * 5.0 * 2.7inPackage Weight: 350g / 12.3ozNotes:1. Driver download link: http://www.weinprinter.com/products_detail.aspx?ProductsID=126&ProductsCateId=74&CurrCateID=74&CateID=742. 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 software.3. If the APP is connected to an IOS system phone,  please enter the Bt connection from the APP. The Android phones can connect directly to BT function.Packing List:1 * Printer1 * USB Cable1 * Thermal Paper Roll1 * User Manual(English)