This electronic magnifier is to control my technique Meinunung by suitable fine solder joints in the SMD. The continuous brightness control is dbabei a good help. Of course, the machine can not replace a stereo microscope. Stand is stable and hard enough to ensure adequate stability. The installation of the device and softwre work right away (Win 7). The USB cable might be a little longer. The device is offered by many names, but at considerably higher price. Those who come clear with the long delivery time from China can thus save some cash.