The cordless, battery operation allows freedom to move the clock from room to room or to take it traveling. Battery operation also ensures that your clock will remain accurate, even in power outages. This clock features an alarm with a 4-minute snooze button, large black numbers on a white dial and hour, minute and sweeping second hands. Operates on 1 AA battery and 2 C batteries; not included. Comes with manual with full, detailed instructions.