BLUETOOTH 1.2/2.0 USB 2.0 100M Add Bluetooth capability to your computer (Windows only) Complies with Bluetooth specification V1.2/2.0 Full speed USB interface, compliant with USB 1.0, 1.1, 2.0 128-bit secure encryption Features LED indicator and built-in antenna on ISM band frequency (2.4GHz). -89dBM@0.1%BER Sensitivity.