Old MacDonald Had a Farm: (A Classic Nursery Rhyme Board Book with Interactive Sliders and QR Code for Instrumental and Vocal Versions - For Babies and Toddlers) (Sing Along with Me!)

Each title in the Sing Along With Me! series has five slider mechanisms and a QR code inside that links to both an instrumental and vocal version of the nursery rhyme. Simply scan the code for little ones to listen and sing along!