I have had microphone issues since buying the DUDU7. The device is fantastic, however the microphone is terrible. The new BETA firmware has gain, which is a start. I have found the best solution. Based on some YouTube research I settled on the following microphone - Olympus ME52W Uni-Directional microphone. I placed it above my dash above the steering wheel pointed directly towards me and it is fantastic. Importantly my voice is very clear and loud to others when making phone calls, my biggest issue before. I did not have to do anything further, it just works. It has a powered noise cancelling through the actual connection to the head unit, nothing further required.
