Supports all versions of Bluetooth 2.0/1.2/1.1 standard features, 
wireless headset, dial-up networking, LAN based peer to peer protocol, 
fax, virtual serial port, information synchronization, file transfer, 
object exchange of traditional, compliant with Bluetooth version 2.0 
standard Cl 1 operation, the Bluetooth core through the Bluetooth BQB 
certification, no external power supply, to take power directly from USB
port, compatible with USB 1.1 standard, LED display, built-in antenna
Transmission distance: 100 meters 
Spectral bandwidth: 2.4Ghz ISM,

Receiver sensitivity:-80dBM,

Wireless LAN: Supports 7 client, 10 meters to 20 meters wireless range,

Power consumption: 90mA maximum current

Data transfer rate: 480MB / s

Operating System: Windows 98SE/ME/2000/XP/VISTA, in tosh OS 9.0 or more