The NeXtime "Nightingale" is a round wall clock (11.8 inches/ 30 cm) made of a wide ABS edge and has a natural wooden look. This clock has a white edge and creatively designed colorful hands. The Nightingale is a modern, trendy timepiece and variant of the traditional cuckoo clock. The bird will appear every hour and will give a pleasantly beautiful sound (not the traditional "cuckoo cuckoo" sound). But don''t worry- if you want to hang this clock in your bedroom- during the night the sound turns off automatically so it won''t wake you up! The clock also has a mute function and you can adjust the volume. This clock runs on 3x AA battery (not included).