Weather resistant self-setting time shows temperature (-10 F to +130 F) and humidity. Relax & enjoy its attraction! Pewter color plastic frame designed for indoor or outdoor use. Self-sets the most accurate atomic time. Simple operation that uses 1 AA alkaline battery and has 4 selection time zone. Frustrated with changing your clock when you lose power or updating for Daylight Saving Time? No problem it automatically adjust for the time change and is battery operated.