Feature&Specification Compliant with the Bluetooth V1.2 specification Class 2 operation Supports the audio transmission among the devices Powered from the PC Full speed USB interface LED status Software upgradeable Built-in Antenna Frequency band: 2.4GHz ISM band Maximum rate: 1Mbps Sensitivity: 89dBM 0.1%BER 20 meters working distance Profiles: dial-up networking / local area network/ Access / fax / serial port / synchronization / file/Transfer / generic object exchange