Occasion: Room decoration, timed alarm clock, learning,e clock in the darkness, especially when you wake up at night. Small yellow light is friendly to protect your eye. Silent Sweep Movement: This childrens analog wall clock has a sturdy, durable design and a premium quality silent sweep movement, saving you and the rest of the family from the annoying ticking sound. The quiet design is great for classrooms as well, as it keeps distractions away! Battery Operated :This clock is operated by 1*AA battery. It is a great little clock for you to travel or bring to everywhere. Package Included:1 pc clock, note:battery not included. Easy to learn and teach: This is a professional wall clock for children's learning. Size:3-4in..You'an store products Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DKPOP store