There are the sound of water and birdcall on the hour. Pendulum can swing after installing the battery. Super quiet, energy saving, accurate and durable. Perfect for kid's room, living room, bedroom, etc. It is also a good home decoration. Specifications: Item Name: Wall Clock Display Type: Analogue+Digital Power Type: Battery (Not Included) Waterproof: No Specification:A Colour:White Material:Plastic Size:about 42*26cm Package Contents: 1 * Clock(NOT included battery) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. There are the sound of water and birdcall on the hour. Pendulum can swing after installing the battery. Perfect for kid's room, living room, bedroom, etc. It is also a decoration. Super quiet, energy saving, accurate and .