The remote controllers of many consumer electronics are already unnecessary

If you have this, you do not say "where is remote controller of TV?" anymore. The remote controllers of consumer electronics often obstacle in rooms.

This is a gadget allowing you to operate consumer electronics using infrared remote controllers with a smartphone. This memorizes infrared remote controllers' signals of consumer electronics of various brands and kinds, converts them into infrared rays from Wi-Fi and lets them link mobile application. Then users can operate consumer electronics such as TV, an audio system, and the air-conditioner with one smartphone. In addition, users can check on/off of the switches from a smartphone immediately because this has sensors sensing the temperature, the humidity and the illumination of the room. If there is even Wi-Fi, this supports most consumer electronics.

via http://www.ratocsystems.com/products/subpage/wfirex1.html