Usage Tips:58mm embedded thermal printer, 60mm/s print speed, clear printing and high efficiency, it will work perfectly with your device. Direct thermal printing, eliminating the need of ink cartridge or toner, environmental friendly and money saving. Multiple connection mode, USB, RS232 and TTL serial port, support ESC/POS command. Provided Android SDK, compatible with Windows, Linux, Android system. Adopt industrial printing head, stable performance, good printing effect, wear resistant and has long service life of 50km. Widely used in supermarket, shopping mall, restaurant, bank, self-service terminal, etc., and it is easily embedded to any kinds of inst ents and meters. Print Mode: Thermal Line Printing Paper Width: 58mm Print Width: 48mm Roll Diameter: Max. 40mm Print Speed: 60mm/s Resolution: 203dpi Print Head Lifespan: 50KM Print Command: ESC/POS Operating System: Linux, Windows XP/7/8/10, Android Work Voltage: DC 5-9V Interface: USB/RS232/TTL Item Size: 11.1 x 6.5 x 6cm/ 4.4 x 2.6 x 2.4in Item Weight: 177g/ 6.2oz Colour:black Material:plastic Package Contents: 1 x Thermal Printer 1 x Thermal Paper 1 x USB Cable 1 x RS232 Cable 1 x Power Cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.