"WHEN TIME'S UP: cuckoo pops out from nest sings and calls ""Coo Coo"" with echo to entertain you and your families. EASY FOR TIME MASTERING: Large clear numerals for clear reading and the time is clear at a glance.you can see the numerals on it very clear. ABS MATERIAL: This cuckoo clock is made of ABS material and every detail has been carefully engraved to ensure that you receive is the perfect wall clock. REQUIRES BATTERY: The cuckoo clock is powered by battery (not included). We recommend using a carbon-zinc battery and replacing the battery twice a year for optimal performance and entertainment. HOME DECOR: You can hang it in your study, public places, offices, bedrooms, living rooms, kitchens, etc., It is a perfect home decoration."