Musical Infant Stimulation Mobile - by Genius Baby Toys Black, White and Red, high contrast fabric colors. Plays classical, Brahms Lullaby. Our infant stimulation mobile plays the soothing classical Brahms' Lullaby, favorite. The calming melodies will help lull baby to sleep, and research indicates that classical music actually stimulates brain development. High contrast, black, white and red infant stimulation visual graphic cards face baby. Extra cards are provided, for change. Mobile features a universal mount that fits most standard cribs. Mobile is age appropriate: Newborn - 5 months.