so it be a blank cube that look pretty good . then you tap it or clap you hand , and the time show up for 10 seconds , then it be blank again . inconvenient at night when you have someone sleep next to you for obvious reason . great present for annoying people who like to walk around clap they hand or singing song while you be try to watch the x-files , it 'll bring they hour of enjoyment . kinda boring , do not work as a excavator or a nuclear launchpad . seem cooler when i be buy it , but bonus point for be innovative and feng shuus .