The quality of the product is high end. I was so impressed with my first purchase that I had a Make....a 2nd. My first purchase was the MIDI my second was the mini I used the midi on my face in front while I use the mini on my feet and legs after reading the book red therapy and there are several books out there..... I realize this was better then just for the skin and muscles and wounds it also helps the retina of the eye and I have visual problems now I keep my eyes closed the light to penetrate and it seems that it helps so then I read that you could actually look into the lights I find that I can do that for a minute or two but I generally close my eyes I have to share with you I see some progress I've been using the midi like for about 63 days and the mini 13 days.... I feel great also they say wine you place the near infra red light on together with the other. It alleviates anxiety and depression...so after 33 day of use i used both frequencies on and i ll say my stressful anxiety is much less... Naturally i do good nutrition along with these lights..... Yes....This was a great at Home investment.....i highly recommend it....not just for beauty skin rejuvenation but for its long list of Benefits.... Mito- Red so the best priced US made product. Great Bang for your buck. For sure!!!.