Lullabelly Prenatal Music Belt is the modern mom's way to safely and comfortably play music, lullabies, audio books, or any recorded sounds to her baby in the womb. Lullabelly is extremely soft, adjustable, lightweight, and machine washable. Simply plug Lullabelly into your iPod, Smartphone, CD player, or any MP3 player. We also include the sound splitter and earphones so mom or dad can listen too!