Works as advertised
Having used this item for several weeks, I can attest to it's excellent performance.  Although I am not sure why you need a turbo button, when it seems to me it should be on full vacuum all the time, it is an excellent beard and mustache trimmer/shaver.  Perhaps a little big, but not heavy.  Simple to use, and many hair length settings. I have no reservation in recommending this one.
Rating: 5 stars