Hansgrohe and Phoenix Design have collaborated on RainBrain, a computerized tablet for the shower that allows users to control five functions via a sleek touch-screen. Personalize and preset spray mode, water temperature settings, music selection, and more. RainBrain also has anti-scald protection and a cold-water flush system that preps showers for instant enjoyment (while saving water in the process). The tablet comes in chrome and white-chrome finishes and measures approximately 5 ½ by 9 ½ in. Prices start at $4,750.