Silent Non-Ticking Mechanism: Equipped with a precise quartz sweep movement, this clock ensures accurate timekeeping and a completely quiet environment. Ideal for bedrooms, classrooms, meeting rooms where silence is important. Classic design complements any decor. Versatile LCD Display: Shows time, day of the week, and indoor temperature (Fahrenheit/Celsius). Easily switch temperature units with the UP key, practical for various settings. Clear & Easy to Read: Large black numbers on a contrasting background with a front glass cover for dust protection, ensuring readability from a distance. Battery Operated: Requires 1xAA carbon battery and 1xAAA battery (not included), no need for electrical outlets. Simple Installation: Features a hook and wide slot on the back for easy hanging, ideal for homes, schools, offices. Color: as shown in the picture. Material: plastic. Package: 1 x Alarm clock. Note: Color may vary slightly due to light reflection/display differences. Measurement error: +/-1-3cm.