... . Besides all standard POS functions, the M3000 features GPRS/GSM, CDMA, LAN, Wifi and Modem networking capability. Also, provide many value-added options ... 7812, Track1/2/3, bidirectional swipeCommunication: GSM/GPRS module,900/1800MHz (CDMA, WIFI, dial-up modem optional)3xPSAM slot, 1 Sim slotBacklit graphic ... *W*H) Input: 100-240VAC, 50Hz/60Hz Output 9VDC, 4A Wireless Mobile POS terminal