... play backKeyboard26 KeysCommunication Modes Standard configurationRS232,USB HOST & DeviceBluetooth 2.1,Class II standard 802.11b/g Option configurationGPRS/ ... key,Shortcut Key,Volume adjustment keyRFIDIntegration RFID,ISO 14443 A/B, ISO 15693CMOS3 Mega pixel automatic colour TV cameraPower ... ,3.7VAdapterInput: AC100-240,~0.5 A,50-60HzOutput: DC 5V±10%,2.0 ASpecificationDimensions150mm(L)x76mm(W)x 30mm ...