These are alarm clocks I purchased about 15 to 20 years ago. They run on one AA battery (operation confirmed). Both are the same alarm clock. When you turn on the switch, at the set time, the silver hammer on top rapidly strikes the bells on both sides, producing a loud, ringing sound. However, due to aging, they sometimes work and sometimes don't. Therefore, I am selling them as decorative clocks, not as alarm clocks. Also, one of them has a partially cracked battery cover, but it doesn't come off unless you try to remove it by hand. Batteries are not included. Height: 12 cm, Width: 8 cm, Depth: 5 cm #DecorativeClock #Interior