after the night vision device is obviously a German license production of National Geographic, you can only say "hats off" the thing is good. With several years of experience (!) In this area of this part is not only cost effective but also technically mature. If anyone is looking disadvantages (why?), It's the, that it could observe through the display a telltale glow at night. For this, the LED is very effective and tailored to the system. The documentation by video is live, on the other hand with me saving still images (depending on a great resolution) rather tough is (I see in the photo-times nothing and must blindly hold out ...) rather problematic. Contrary to my expectations I still have the first set of batteries - the use of NIR diode appears to be energy-efficient. In the dark you need to be sure that the optics is left, because otherwise lost one with the 6 function keys easily .... Sadly, I was only just after I had ordered, the price dropped from 55 to 42 euros. And the only reason I am giving one star less!
