The ability to remove a watermark from an encoded image opens the possibility of various novel applications. The device body has a switching layer that is switchable by means of current passed through the device body and between the top and bottom conductors. A tether disposed inside this airbag body is folded in such a way that both lengthwise direction sides of the tether are aligned in a direction in which the pair of main panels face each other. At least one suction pump is associated with the at least one container and is fluidly connected to the laundry washing tub for delivering thereto dosed amounts of the treatment products. On a larger scale, the exchange is able to control the loudspeaker volumes of all of the endpoints in the workplace area. More particularly, the invention relates to the treatment of neurologic and psychiatric disorders, for example psychosis and disorders comprising cognitive deficits as symptoms.