Valcom 16-Inch Analog Clock, Wireless, BatteryDesigned for high traffic environments like classrooms, offices, healthcare facilities, and industrial spaces, the Valcom V AW16B 16 Inch Wireless Analog Clock delivers big time visibility and dependable timekeeping without the hassle of wiring. This 16 inch clock combines a sturdy metal case with a shatter proof polycarbonate crystal, ensuring it stands up to daily use while providing a clear, easy to read dial from across the room. Battery powered