ordered the Teslong endoscope camera for examining hard-to-reach places. Since I will probably only use it a few times a year, it is perfectly adequate. You can't just compare them to a professional device. It comes in a handy storage case with foam inserts. Operation is clear, self-explanatory and the display is easy to read. The first thing I checked was the drain in the bathroom sink, because hair often gets tangled up in it and clogs it. I have to disassemble and clean the siphon regularly. Now I can inspect the drain with this camera and use the hook to remove any hairballs before they become a problem. After a bit of experimenting with the LED lighting, I got quite good and sharp images, on which you can also see details. The brightness can be adjusted in 6 levels and is completely sufficient. The recordings are stored on a supplied 32GB SD card and can therefore also be viewed later on the PC. The flexibility of the probe hose is pleasant and not too rigid. However, it is difficult to steer, so that it sometimes takes a few tries before you hit the desired position. It can take a while, especially over long distances. The additional lenses are very helpful because you don't have to work with a deflection mirror, as is the case with some competing products. I have no complaints about the processing. There are no sharp edges or burrs.