Unique Smart Toilet with Bidet Built In, Intelligent One Piece Toilet For Modern Bathroom, Auto W2826P230233Auto Open Auto Close Lid: Experience hands free operation as the seat lid automatically opens upon approach and soft closes when you leave, eliminating the need for manual adjustments. Foot Sensor Function: Foot sensor activates various functions including opening and closing the seat, as well as flushing, offering a hygienic and convenient solution without the need to bend down to operate. 1. 28 GPF Powerful and Water Saving Flushing Technology