It has EMV smart card, security, multiple application, wireless communication. Reliability, fast download and low price POS POS ... GSM/GPRS module,900/1800MHz (CDMA, WIFI optional)4xSAM (Security Access Module)Backlit graphic screen: 128x64pixels, LED backlight, 16-grade grayKeypad ... 400gExternal switching power supply; Internal 3.7v 1000MAh Lithium battery Wireless Retail POS Terminal with Printer