General Radio Bluetooth Class 20,30 meters (in open space) Carrier Frequency: 2. 4 2. 483GHz Data Rate: 1 Mbps (The maximum operating range depends on the environmental factors. ) Bluetooth Standard: Bluetooth v 1. 2 & 1. 1 Spread Spectrum: FHSS (Frequency Hopping Spread Spectrum) Modulation Method: GFSK (Gaussian Frequency Shift Keying) I/O Interface: USB v1. 1 Input Power: DC 5V, USB Power Sensitivity: < 0. 1% BER at -80 dBm RF Output Power: 0 dBm (typical)System Support Windows XP/2000/ME/98SE (The product is driven by the bundled IVT BlueSoleil Bluetooth software or Windows XP SP2 Bluetooth stack) Dimensions: 43. 0 * 15. 0 * 3. 0 mm LED Indicator: Single LED Advantage Functions Serial Port Profile Dial Up Networking Profile File Transfer Profile Human Interface Device Profile Hardcopy Cable Replacement Profile Object Push Profile Synchronization Profile LAN Access Profile FAX Profile Personal Area Networking Profile Advanced Audio Distribution Profile Basic Imaging Profile Boundled Bluetooth Software IVT BlueSoleil (Language Supported: English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, Italian, German, Spanish)