Rylai Handcrafted Wood Cuckoo Wall Clock Made of linden wood with hand-carved decorations. The bird comes out and sings co co every Hour. Automatic Night Shut Off Sensor -- night silencer. Adjustable Volume - (High, Low or Shut off). Two D Battery Operated (not included) Net size: 18"H x 14-1/2"w x 7-1/2" D 100% SATISFACTION GUARANTEED - We are so confident that you will like TimeMate Cuckoo Clock that If there is any quality problems we will give you a full refund on the product price. Try it we know you will like it!