... EDR 2.Maximum data rate: 3MB 3.low price and high quality bluetooth USB Dongle/USB adapter*Bluetooth Version 3.0+ EDR ... 2.4GHZ unlicensed ISM band *Maximum data rate: 3MB *Super slim and mini size, easy to carry *Sevices supported: Serial port ... transfer, PIM Synchronization, file transfer, Network access, Audio Gateway, HID basic imaging profile, advanced audio distribution profile, audio video remote ...