The camera set comes with instructions for use in German, which will definitely help the user, even if the device is basically very easy and intuitive to use. The individual buttons on the control unit work perfectly and pleasantly. With a battery life of around four hours, you can investigate a problem quite extensively. The three lenses at the tip of the guide wire deliver a pin-sharp image on the device's own screen; at least for objects at a distance of about 2 cm to about 10 cm. In this respect, the camera is primarily intended for examinations of narrow corridors and not, for example, of sewage pipes in the ground, since the camera would have to capture and display a larger field of view for these cases. However, the set is not designed for the latter. And it displays the area that the device is supposed to capture and examine perfectly. The dimmable and good illumination of the middle lens is also very helpful and also supports a clean display. With the additional lighting on the housing of the screen, you can also work well in dark surroundings, i.e. you can find the entrance to a tube into which the hose of the endoscope is to be inserted without any additional tools. The hose itself is quite rigid, which is probably necessary to move it forward at all. However, successful handling here requires some patience and practice; but then you get along well with the camera. When handling the endoscope tube, it is very helpful if a second person holds the screen or you clamp it (carefully) in some way, otherwise it wobbles around and you cannot observe anything on it. With a length of 5 meters, the camera hose certainly enables most household examinations without reaching your limits so quickly. A hook (included) or a magnet (also available) can be attached to the tip of the probe, with which you can also use the camera to fish objects out of pipes or similar. In addition, the camera, including the hose, is actually waterproof. All around good and definitely deserves 5 stars!