... Storage temperature:-20 to 5512. Communicate on: USB /Wifi/CDMA/GPRS/Bluetooth , ( wifi ,Bluetooth or GPRS only choose single) 13. Storage: SD cardsupport max ... 1GB14. Dimensions: 202mm*78mm * 33mm 15. Weight: 300g 3.5" PDA ,handhelds,handheld device,handheld terminals, with barcode reader,GPRS, RFID reader is optional