Classic retro alarm clock-The two bells of our classic bedside alarm clock provide a compact and loud enough sound to wake you up in the morning. There is no snooze button. This is a good wake-up clock for people who have difficulty getting up and who are sleeping badly. SILIENT ALARM CLOCK-Silent second hand, ultra-quiet and simple design alarm clock, no tick to tick, it is the best choice for a wonderful sleep, work and study environment. Easy-to-read luminous function-After pressing the luminous button on the back, you can clearly see the night clock; large Arabic numerals make it easy to check the time. Metal alarm clock-1 x AA battery power supply (battery not included); there are two buttons on the back of the clock, one is for time adjustment and the other is for alarm adjustment. Rotate the alarm clock adjustment button clockwise, and pull up the alarm button next to the alarm clock adjustment button to set. Size: 10.5*5.5*16.5cm