In this day and age, customization is a big deal, and Viega aims to usher you in the right direction where baths are concerned, where you are able to customize your bath with the simple push of a button. Guess it is somewhat akin to the BMW iDrive system in some ways. The Multiplex Trio E Viega unit allows you to fill up the tub with the push of a button, while enabling you to adjust the bath’s temperature down to the right level that you’re comfortable with. A rotary knob and a snap is located right on the edge of the tub, or you can opt to fit it in the wall. Don’t worry about power failures – a built-in battery ensures it will continue operating to take away some of the stress of knowing there’s a whole lot of work to be done but no juice to power your devices.