A soft lullaby soothes baby to sleep, while other musical selections provide important audio stimulation when she's awake. With the First Years Crib CD Player, you can play your favorite music for baby anytime. No need to be limited to music box lullabies. No need to buy audio tapes of CDs you already own. Player attaches to crib rail with child resistant cover for safety. 15-minute timer and auto shut-off features, plus a soft-glow nightlight that can be turned on or off.