NIGHT LAMP FUNCTION You can see clearly the time at night. High Quality smooth sweeping quartz movement Quiet sweep second hand, Silent, no ticking to ensure a good sleep and best working environment." [Size]: 3 inches, the diameter of the clock face is 8 cm, including the size 9cmX5cmX12cm "Energy saving and environmental protection It use only one AA battery, creating low carbon life.(Battery is not included) Electroplating guarantees colors keep shinning and bright. Easy to use" "There are just 2 knobs on the back, one to adjust time and one to adjust the alarm. Easy to read dial, perfect for kids or seniors. Loud alarm ringing" Silent movement does not affect sleep. Fashion retro style, add to the art feeling. Cute and practical alarm clock The sound of the clock is approximately 80 dB. The lighting design makes it easy to watch the night.