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.