Teddy bear with a projector and lullabies.

It will require 3 AAA batteries. In the dark, your baby can watch stars, colors change (red, green, blue). Several lullabies play, a train hums, a spring babbles, frogs croak. The volume can be adjusted. Used gently, my baby always fell asleep, especially listening to the train's hum. Suitable for 0+.