... MHzMemory: 128 MB RAM/1 GB Flash,Expansion Memory:4G TF (standard), maximum 32GInterfaces: USB 2 ... 4,000 mAh) Expansion slots: SIM/SAM/Micro SD (TF) card, Indicator: LED, Audio: 0.5 watt,Input ... /1900 MHz) 2.WPAN (Wireless PAN)Bluetooth: Class II, 3-5 M3. PSAMBaud rate: 9600, 19200, ... RS232 serial cable, Touch stylus, 4G microSD (TF) card,Hand strap, Carrying case, AC adapter, SDKOptional Accessories ...