... power, supporting all kinds of bluetooth phones, strong Compatibility, can transmit any file easily. 2. Intuitive software operation interface, ... with bluetooth v1.2, v2.0+DER, v2.1+EDR version, compatible with USB V1.1, v2.0. 2. Operation freguency band: From 2.4GHz to 2.483GHz, ... . Sensitivity: < -85 dBM. 5. USB interface, data transmit rate can reach 0.725M ---2.1bps, fast- speed and stable, high ...