Sometimes with mass produce product one of them might end up a lemon. He probably got a unit that has issue. He can simply send message via wiim app which also send his log to wiim for troubleshooting. I don’t think it’s appropriate to publish a review on YouTube with negative things to say like that. Viewer think it’s design flaw. I did not see any measurements on his review so it’s just subjective “word of a mouth” which doesn’t bode well who believe in science.Yeah, I shared the video with the team to check it out, but there isn't a lot of information in it, so I'm not sure what they'll be able to find. Hopefully he can contact us to share more feedback. If this were a wider problem, most likely it would have come up already, but I'll let you know what I hear.