Features:  ▶ Mini BT thermal receipt printer, 80mm paper width, 75mm valid print width, maximum 90mm/s print speed, 203dpi resolution.  ▶ Support BT and USB cable connection, compatible with iOS, Android, Windows system.   ▶ Adopting thermal print head, no need of ink cartridges or ribbons, clear printing, low operation cost, thermal paper is easy to buy.  ▶ Built-in 2500mAh large-capacity rechargeable lithium battery, print receipts at any time. Portable and lightweight, easy to carry, it doesn't take up much space.   ▶ Widely used in major industries such as supermarkets, shopping malls, restaurants, fast food restaurants, cake shops, retail stores etc.    Specification:  Model: PT-320  Product Size: 113 x 130 x 63mm/4.4 x 5.1 x 2.4in  Product Weight: 354g/12.5oz  Color: Black  Resolution: 203dpi  Thermal Paper Roll: 78x30mm  Paper Width: 80mm (MAX)  Valid Print Width: 75mm  Printing Speed: 90mm/s  BT Connection: BT2.0 and above  Battery: 7.4V, 2500mAh  Charging Time: 6hrs   Continuous Discharging Time: 5hrs  Input: 5V 2A  Package Size: 15.5 x 14.3 x 8.2cm/6.1 x 5.6 x 3.2in  Package Weight: 491g/17.3oz    Note:  1. Please download the driver via: https://drive.google.com/file/d/1xdwMVX_-NTuXZww_WGLM5UyXRk3wQ2qI/view?usp=drivesdk  2. Various APPs are compatible with iOS system (Dlabel, Baypage, caysnprinter) and Android system (Dlabel).   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 x Receipt Printer  1 x Thermal Paper Roll  1 x USB Cable  1 x User Instruction