... & Play in XP and VistaBluetooth V2.0 + EDR compliant, backward compatible with v1.2 and 1.1USB interface fits both Desktop ... Standard: Bluetooth V2.0Chipset: CSRFrequency: 2.4~2.48 GHzSymbol rate: 3Mbps Antenna: IntegratedReceiving / Sending rang: 0 ~ 20 mDimensions: 22mm x 18mm ... System: Windows ME, Windows 2000, XP, Vista / Macintosh OS 10.2 NEW USB 2.0 PC BLUETOOTH DONGLE 100M DONGLE EDR ADAPTER