In order to perform a factory reset on the MB Pro, please follow the instructions below:
1) Turn the headset off (hold the multi function button for two seconds; this should be followed by the voice prompt "powering off" and the LED flashing red three times.
2) Press and hold the multi function button until the LED flashes alternately red and blue (this indicates that the device has entered pairing mode).
3) Simultaneously press and hold the multi function button and the audio button (volume control button) for five seconds until the LED flashes purple three times, and then re-enters pairing mode (indicated by the LED flashing alternately red and blue).
4)The headset has been reset.