Elevate the experience with the new Washlet® S400. Its the first Washlet seat that combines the convenience of a hands-free flush with an automatic open & close lid. The new S400 Washlet, designed to work exclusively with select TOTO toilets, is our first intuitive Washlet. Experience the ultimate in clean comfort with an automatic, hands-free flushing system and a sensor-activated lid that automatically lifts as you approach the toilet and lowers as you walk away. A convenient, easy-to-use remote control affords you effortless operation of our most luxurious Washlet model to date. The new S400 offers the following features: The Washlet is designed to introduce you to a level unprecedented comfort, while delivering on the promise of maximum cleanliness. At your command, an integrated, self-cleaning nozzle extends to release a warm, soothing stream of aerated water to provide the ultimate in personal cleansing. Washlet S400 is easy to install. Elongated closed front seat with lid, mounting and connection hardware included.