The Braun reissue of the AB30 Alarm Clock, originally designed in 1990, has a voice or clap activated snooze function and a clear crisp crescendo alarm, and runs on one AA battery (included). High precision quartz German movement. Easy to read dial. Two-year warranty. The legendary Braun travel alarm clocks were loved by many long after original production stopped. Braun's decision to reissue the clock and watch collection met with the approval of Dietrich Lubs, co-designer with Dieter Rams. Dimensions: 2.5” wide, 3” tall, 1.3” deep. The 2011 alarm clocks are based on the original designs with slight modifications, bringing them into the 21st century.