Broadcom Chipset ,Bluetooth Standard v2.1+EDRO,peration Range is 20m,Genuine IVT 2.7 software,Support A2DP and Vista 20m wian Bluetooth USB dongle 1. Bluetooth USB dongle 2. Operation range: 20 meters (class 2) or 100 meters (class 1) 3. Carrier Frequency: 2.4-2.483GHz 4. Spread Spectrum: FHSS5. Data Rate: (Bluetooth v1.2) 1Mbps or (Bluetooth v2.0) up to 3Mbps6. I/O Interface: USB v1.1 7. Input ...