Can be easily used in place of a button.Can be concealed under any non-metallic mmaterial.Each touch sensor requires only one wire connected to it.It may be used to sense human touch through more than a quarter of an inch of plastic, wood, ceramic or other insulating material (not any kind of metal though), enabling the sensor to be completely visually concealed. Capacitive touch sensing is a way of human touch sensing, that requires little or no force to activate.