This is a cube black click clock From Gingko. Just click your fingers, clap your hands or give a gentle tap and the white LED display reveals the time, date and temperature alternately. This will lasts for 20 seconds. This clock has alarms, sound control, temperature and date with permanent time display functions. This will required 3AAA batteries(Not Included) or can also be powered by 5V AC/DC adapter (Included USB adapter).This modern, stylish and great design with clever watch from Gingko is a great addition to your home accessories.