StarTech USBBT2EDR2 Mini USB Bluetooth 2.1 Adapter - Class 2 EDR Wireless Network Adapter Bluetooth Standards: Bluetooth v2.1 + EDR Transfer rate: Up to 3.0Mbps Chipset: CSR BC0401PC08 Antenna: Chip Antenna Range: 20m (65ft) Power Consumption: 0.1W Radio Frequency: 2.4 GHz ISM Operating Systems Supported: Windows 2000/ XP(32/64-bit)/ Vista(32/64-bit)/ 7(32/64-bit), Mac OS X