Specifications: 1) Compliant with the Bluetooth V1.1 specification 2) Class 1 operation 3) Supports the audio transmission among the devices 4) Powered from the PC 5) Full speed USB interface 6) LED status Software upgradeable 7) Frequency band: 2.4Ghz ISM band 8) Maximum rate: 1Mbps 9) Sensitivity: 89dBM 0.1%BER 10) Real 100 meter working distance 11) Profiles: Dial-up Networking / Local Area Network 12) Access / Fax / Serial Port / Synchronization / File 13) Transfer / Generic Object Exchange