PhysicalSize: 105x70x11mmMaterial: PVCWeight: 80gInterface: USBColor: GrayRFFrequency: US 902~ 928 Mhz, EU 865~ 868 MhzAntenna: 0 dBi Built-in antennaRF Power: 0 - 17dBmRead Distance: 0-40cm, Write Distance:0-20cmProtocol: ISO18000-6C (EPC GEN2)LED: Red & Green LEDBeep: Yes Power Supply: USB 5V, 200mAInterface: USB HID (Keyboard) or USB Virtual Serial PortSoftwareSDK: Support X86 & X64, C++, C#, VB, Delphi, LinuxEnvironmentOperation Temperature: -10~+60?Storage Temperature: -25~+85%