With this endoscope camera you can look into cable ducts, look at an engine from the inside or look in anywhere that you cannot easily shine a light into. The camera can be rotated so that you can also look around the corner in a shaft. The light from the camera is very strong, so that the picture is very well lit. Thanks to the rechargeable battery, you are independent of the mains power supply. Recordings can be made on the memory card, for example to provide evidence. You can also transfer the image to your smartphone. I have already tried out a number of endoscope cameras. However, these were not as extensive in terms of functions. They were more suitable for checking cavities. No camera has previously been able to move the camera with a joystick. Also, the quality of the images was not nearly as good as with this model here. However, this is also reflected in the price. Anyone who needs a professional endoscope camera is certainly well served with this model. In particular, I find the transfer of the image to the smartphone very successful, so you can also let other people participate. This should be very well suited for training purposes, for example. The device is very robust and makes a very good impression of quality. Even without a user manual, you can intuitively use this device immediately. Of course, the accompanying operating instructions provide information on how to use it. I give this endoscope camera full marks. Due to the high price I recommend this device for the professional craftsman. This camera should be of great help, especially in engine construction or repair work.