Upgraded Movement: Compatible with alkaline battery, with a battery life of over 2 years ( tested under AA Alkaline High Performance Batteries 1.5V) . Requires 1 AA Battery for the clock (not included). Please note that actual battery life depending on the battery's capacity, environmental conditions, and usage habits. Lovely Design: Rich colors of the silent wall clock to bring the feeling of youth. Ideal silent wall clock for all room decoration. Super Silent Mechanism: Precise quartz sweep movement guarantees accurate time and absolutely quiet environment. Simple style suitable for bedroom, kitchen, classroom, dining room, or any other places which needs a silent environment. Easy to Read: Large colorful wall clock with large numbers are clear to read and clear acrylic front cover guarantee good view, even from side. Easy to Hang: Designed with a hook and wide slot at the back, this wall clock ensures a hassle-free installation process, allowing you to effortlessly mount it on any desired wall. Kids Wall Clock