滑滑音效書：Slider Sound Books: Woof!

        Move the sliders back and forth in this delightful sound book to see and hear the world of dogs and cats come to life. From barking and meowing to guzzling dinner and splashing in puddles, there are eight different lively pets to discover. Each slider makes one sound when you move it one way and a completely different sound when you move it back again, creating a unique and exciting surprise for babies and toddlers.