Seller gets mad props for fast shipping (under a week within the EU). Unfortunately, that's where the positives end. What they sent me was a used unit. It was in anopen box taped shut with an office adhesive tape, and inside was a unit full of scratches and other signs of previous use. I paid for a new item, not used one. This is unacceptable. Also, enclosed instructions are in Chinese and English, with the latter being some kind of machine generated translation which makes zero sense. No idea how to use the unit, or whether it works at all. I wish everything was as stellar as seller's shipping, but beyond that, everything was a flop. I contacted the seller about it, but they did not own their error and refused to remedy anything. Very disappointed. Would not buy again.