Touch screen,powerful function, stable performance, lasting battery, Linux/wince OS, multi-application, cross platform. Specification:CPU: ARM9 32bit, 400MHZMemory: 128M Flash, ... RF cardwireless: GPRS/CDMA, optional to wifi, bluetooth, 3G.Li-battery: 7.4v 1800mAHExternal power: 100-240VOS: Linux/winceLanguage: CSize: ... PCI, EMV, Visa, Mastercard, QPBOC etc. Touch screen EFT POS terminal mobile payment