Boya BY-M100chat_bubble_outlineFrom real comments

A known hum and ground loop issue affects some units. Several commenters report a hum or ground loop noise triggered by touching the microphone body. One explanation ties this to the lack of a proper ground connection on the XLR plug and the metal mic body, suggesting a cable re-soldering fix. Another user compares it to a similar issue on a Maono mic, concluding their workaround is simply not touching the microphone while recording, implying this isn't a one-off defect.

Sound quality impressions are mixed but mostly positive. One user says plugging it in delivered an immediately noticeable improvement in sound quality without needing further explanation. Another describes the sound as excellent alongside solid build quality. However, one buyer reports low volume with a boosted low end and a kind of emptiness, suspecting their unit might be damaged, while another simply asks whether the sound is too crispy or has enough bass, showing some inconsistency in tonal impressions.

Praised for omnidirectional pickup and flexible, power-free design. A commenter thanks the reviewer for clarifying that the mic is omnidirectional rather than shotgun, which helps set buying expectations. Another summarizes that the wired design limits use somewhat, but its advantage is not requiring separate power and being able to rotate 360 degrees. Users also mention using it successfully for filming videos in the countryside, reflecting real-world practical use in outdoor recording scenarios.