This Lambs and Ivy musical crib mobile soothes baby with rotating movement and three classic lullabies: Brahms Lullaby, Twinkle Twinkle Little Star and Rock-A-Bye-Baby. The battery-powered music box spins the mobile while it plays for 20 minutes, with an on/off switch and volume control for easy use. The mobile includes an attachment arm that fits most standard cribs and is powered by 3 AAA batteries, not included. Decorative plush figures provide visual stimulation to help baby track movement and self-soothe to sleep. Exact figure design and colorway could not be confirmed from the listing, so please verify the motif before ordering.