IOGEAR GBU321 Long Range Rate Bluetooth USB Adapter Bluetooth Standards: Bluetooth 2.0 Transfer rate: Up to 2.1Mbps Range: 100m Security: Pairing, Encryption, Authentication Transmission Power: 20 dBm max with power control (Class 1) Sensitivity: Minimum -76dBm Radio Frequency: 2.402 GHz - 2.4835 GHz Unlicensed ISM band Operating Systems Supported: Windows 2000/XP MAC OS X v10.3.9 or later
