Specifications: 1) Com pliant with Bluetooth V1. 1 and V1. 2 V2. 0 specification 2) Class 2 operation 3) Fully Bluetooth version 2. 0 qualified 4) Powered by PC 5) Full speed USB interface, compliant with USB 1. 1 6) LED Indication 7) Software upgradeable 8) Built-in antenna 9) Frequency band: 2. 4GHz unlicensed ISM band 10) Maximum data rate: 3. 1M 11) Sensitivity: -89dB at 0. 1% bar 12) 10m operating range 13) 128-bit secure encryption 14) Supported profiles: Dial-up networking; Local area network access; Fax; Serial port; Synchronization 15) File transfer; Generic object exchange; Audio profile 16) System requirements: PC or notebook with USB port, Windows 9X / ME / 2000 / XP