The Bluetooth USB Adapter adds Bluetooth technology to your existing USB PC or notebook to let it work with all devices enabled with Bluetooth v1.1 technology Wirelessly print, synchronize your PDA information, and create dial-up connections through a mobile phone. From up to 20 / 100 meters away you can effortlessly transfer data to other Bluetooth devices such as desktop or notebook computersPDAs, scanners, printers, and even mobile phones-wirelessly. Specification Standard USB UHC1/OHC1 spec 2.0 Compliant. Compliant with Bluetooth 1.1 Specification Interface A-type USB Connector Frequency Range 2.4-2.48 GHz Power Class Class 2/1 Data Transfer rate 2.0Mbps(Max) Rx Sensitivity 0.1% BER/PIN : -80dBm Input Voltage/ Current DC 3.3V /100mA Antenna Integrated antenna Dimension 59 x 8 x 20 mm Software Support Support Windows Vista,XP,2000,ME,98SE,Used for Desktop PCs, Notebooks Support Profile General Access, Service Discovery Application Dial-up Network, LAN Access, Human interface DevicePIM Item Transfer, PIM Synchronization,File Transfer Generic Object Exchange, Object Push, Serial Port Hardcopy Cable Replacement, Printer, FAX Basic Image profile 150 Units in One Box LxWxH=55x36x24