I bought this product in the summer of 2018 at CVS, and I decided to open it today because the inside of my nose gets very dry inside, etc., and I put product together just the way it says in the video on YouTube because the manual didn't cut it for me.
I did what it asked for to do and the product doesn't work. I used new Energizer ultimate lithium and put it in right, went to the YouTube video, to their troubleshooting video, and followed their steps and this product still doesn't work. And the start button is not practical and not friendly on consumers fingers. All the hype, but nothing to show for it, $90+ gone out the window.
Bottom Line: No, I would not recommend this to a friend