Sounds like a baby in the womb, so your baby can relax and sleep. Compared to similar products, the number of songs has been greatly increased, including new ambient sounds. Most songs can be adjusted to slow speed You can choose different speeds to play songs at the right time Music recording: (1) Womb sound (2) Winnie the Pooh (normal and slow tempo) (3) Schubert's Lullaby (normal and slow tempo) (4) Beethoven's Ninth Symphony (normal and slow tempo) (5) Cradle Song (normal and slow tempo) (6) Old Great Clock (normal and slow tempo) (7) Sound of the waves (8) Birdsong Age of the object: newborn or above Box size: W29.5x H18.5x D18 cm Battery: AA batteries 2 (sold separately)