Specifications:This mini USB Bluetooth version 4.0 adapter with high speed transfer rate, simple pairing features.It's a simple solution to enable your computer connect with smartphone, tablet or other Bluetooth device.Compatible with most laptops and PC's, quick and simple setup! Just plug, install and play.Features:Using CSR8510 chip, compliant with the Bluetooth 4.0 specification, dual-mode transmission.Up to 10m transmission distance(non-blocking), signaling strong.Up to 3Mbps transfer rate, providing high-speed file and audio data transmission.USB2.0 interface, more versatile, ultra-portable portable mini stature.Backward compatible with Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0 specification.Compatible with most operating system: Windows 98, 98 SE, ME, 2000, XP, Vista Win 7/8 32/64 bit.Type: Bluetooth AdapterMaterial: Plastic + MetalMain Color: Black + GoldenInterface: USB 2.0Bluetooth Standards: Bluetooth 4.0Transmission Distance: 10mProfiles: Bluetooth Low Energy, Dual-Mode BluetoothFrequency Band: 2.4 GHz to 2.4835 GHzSensitivity: [email protected]%BERRF TX Power: +6dBm(ClassП)Transfer Rate: Up to 3.0MbpsChipset: CSR8510Voltage: 5V (USB Bus-Powered)Power Consumption: 5V, 90mA MaxStandby Current (Connected): 0.4uAOperating Frequency: 24MHzOperating Environment Temperature: -20℃ to +70℃,Operating Environment Humidity: 10%-90% Non- CondensingSize: 20mm x 13mm x 5mm/0.79" x 0.51" x 0.20" (Approx.)Package Includes:1 x Bluetooth Adapter (Come with software CD.)