Features: 1) Standard: Bluetooth specification V1.1 and V1.2 2) Class 2 operation 3) Bluetooth version 1.1 qualified 4) Powered by PC 5) Full speed USB interface, compliant with USB1.1 6) LED indicator 7) Software upgradeable 8) Built-in antenna 9) ISM band frequency: 2.4GHz 10) Maximum data rate: 1M 11) Sensitivity: -89dBM at 0.1% BER 12) 10m operating distance 13) 128-bit secure encryption 14) Supported profiles: a) Dial-up network b) LAN access c) Fax d) Serial port e) Synchronized file transfer f) Information exchange g) Audio profile 15) Supported systems: Windows 98 / ME / 2000 / XP