Round Cooper Twin Bell Alarm Clock,Battery Operated

Ensure you are using a brand new or relatively new battery. Flick the alarm on/off switch on the back of the clock If the hammer between the twin bells does not strike the bells, flick it and shake it a few times to loosen the mechanism. Specifications Dimensions: 13cm (height) x 7.5cm (diameter of clock face) x 5cm (thickness) Operates with 1x AA battery (not included)