Ordered, as the reviews in the sum not sch were badly the unit. Yesterday unpacked and connected. The distance is approximately 10 meters. In between a timber wall and a 24ger hollow block wall. Well, welcome to the other side tends to zero. Here and there, some clay with very heavy noise and rudimentary a few image contours. Regardless then with plenty of frustration all fired which jumpers configuration and position of the transmitter and receiver after 2 hours in crate and put away once. Si is the halt. Who wants to save will buy at least two times. Despite several "cheap" experiences I'll ommer not smart. That annoys me most then. For all the device even then buy luck :-)