Maono's WM620 wireless microphone is a high-quality microphone that features dual silicon receivers. On the top and bottom of each transmitter, there is a high s/n analog silicon mic, producing clearer audio. The noise canceling function of the WM620 wireless microphone has greatly improved. We use two silicon mics. The top microphone is the main vocal microphone and the bottom microphone is for the ambient noise. With ENC noise canceling technology and the DSP noise canceling algorithm, the Maono WM620 wireless microphone filters more than 90% of the ambient noise. In addition, to satisfy more user needs in different scenarios, we developed three noise reduction effects for the best noise cancellation.