Size: 8.20X7.30X4.20cm/3.22X2.87X1.65in Nonhook design: the wall-mounted nonhook clock movement makes sure no scratches on your walls, providing a and more reliable hanging solution bird time announcement: every hour, the charming bird reminds you of the passage of time, adding a delightful auditory experience Power supply: 3 x No. 3 (not included) Craftsmanship and clock mechanism: meticulously crafted for stability and equipped with a precise clock movement, ensuring accurate timekeeping.