This jumbo alarm clock features a soft silicone case and a large digital display, which lights up at the touch of a button. It is just as easily viewed at night as it has Smartlite technology, where a bright green backlight illuminates the display as the room gets darker and turns it off again during the daytime to prolong the battery life. Acctim Silicone Digital Alarm Clock Smartlite® Crescendo Alarm Easy Read Jumbo Display Silicone Case in Dark Blue