Bluetooth has already become a wireless data exchange technology that we can’t imagine a life without. It exists on almost all of our portable electronic gadgets like mobile phones, handfree headsets and some PCs. It’s a perfect tech for digital devices that don’t have a huge power pool to share their data conveniently. And this adapter is such a helpful little tool to turn any device with USB port into a Bluetooth armed cool device. Features Plug-and-play, no driver installation required Strong built-in Ceramic Antenna Exclusive Bluetooth address for each IVT software permission included Compatible with Raspberry Pi A+,B,B+/2. Specifications Bluetooth version：Bluetooth V2.0 + EDR Interface type ：USB 2.0 Effective range ：10 m in open area Modulation mode ：2.4 G direct sequence frequency hopping (FHSS) Emission power：Class 2 Size and weight：22x18x7 mm 2.5g Operating system：98SE/2000/XP/2003/Vista/Win 7