Key feature: 1, Com pliant with Bluetooth V1.1, V1.2 and V2.0 specification 2, Class 2 operation 3, Powered by PC 4, Full speed USB interface, compliant with USB 1.1 ,USB 2.0 5, LED Indication 6, Built-in antenna 7, Frequency band: 2.4GH z unlicensed ISM band 8, Maximum data rate: 3M 9, Sensitivity: -89 dBM at 0.1%BER 10, 10m operating range 11, 128-bit secure encryption 12, Supported Profiles: Dial-up networking; Local area network access; Fax; Serial port; Synchronization File transfer; Generic object exchange; Audio profile 13, System requirement: PC or notebook with USB port 14, Windows 2000/XP/Vista