I had ordered my products because of the really good reviews, has to have but a few overlooked, which (recently) is the same as happened to me: Unpacked and had several items in hand. This happened to me with the replacement of Amazon, so I have one connected me to let me repay the amount. For this, a big thank you to Amazon, who act as always easily, extremely fast, flexible and customer-oriented. The device itself may well be good, unfortunately I never had the opportunity to try it. Possibly the manufacturer should examine the last times 100 pieces accurately to breakages in the Gehäüseverschraubungen.