Karlsson alarm clock Block is a favourite from the Karlsson collection. Made from black veneer with a LED index, the Karlsson alarm clock has a super modern look. Karlsson alarm clock Block is smart and has multiple options. It shows you the time, date & temperature and he works as an alarm clock. You can also choose to show the time constantly or make the time visible when the clock is tapped, or a sound is made. Modern alarm clock Block from Karlsson works with a USB cable that is included. The battery can be placed as a backup. A sleek, modern and functional alarm clock from Karlsson.