The unit I use for transferring music to another room through a normal wall. Despite repeated repositioning of the devices, the signal is always accompanied by unpleasant noises. These come in an uncontrolled manner or if you move in the spark gap. The distance between the two devices is ~ 7m. There are present in the spaces any other cordless devices or otherwise interfering devices. Wireless transmission of TV - signal has not yet been tried - (no need). Packaging and shipment OK. The appearance is very good. Price is ok ???. The price - ('m planning a short unit ordered), 12% has been increased for a month by approx. I have been taking the note --- again --- order assumed that the price is also equal then. (Early January ca, 44, --- End January 50) That is why only 3 *