Our Contemporary Series offers a sleek design perfect for modern office settings, work spaces and home environments. A five-foot UL certified chord plugs into any standard outlet so there is no need for a battery. Non-yellowing 12.5� white dial face features bold, easy-to-read Arabic numerals, black hour and minute hands, and red second hand. Clock bodies are durable and biodegradable, made with 30% post-consumer recycled content. Lenses are shatter resistant and UV protected. Each clock is subject to our two-step testing procedure before being packaged. We the quality and functionality of our clocks with a three-year limited . All Chicago Lighthouse clocks are assembled in Chicago, Illinois by people who are legally blind. One AA battery required (not included). Built-in hanging hardware included for ease of use.