Bluetooth USB Dongles Class II, V 2.0
1. Bluetooth Class II: 20 meters (in open space)
2. Carrier Frequency: 2.4 - 2.483GHz
3. Data Rate: Up to 3Mbps 
4. Bluetooth Standard: Bluetooth v2.0 + EDR
5. I/O Interface: USB version 1.1
6. System Support: Windows XP/2000/Vista
7. Dimensions: 22 * 15* 7.5 mm
8. Weight: 1.1 gram
9. LED Indicator: Single LED
10. Bundled Bluetooth Software: IVT 2.X
(Language Supported: English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, Italian, German, and Spanish)