The Goodway Little Angel Music Projector is the perfect way to help your baby drift off to sleep. With dynamic and lively images, and gentle music, your baby will enter a delightful dream land with ease. The projector has light turn on and off buttons, and can be used just to play smoothening music. The length of the sling belt is adjustable at the pothook position, and there are power on/off and volume control buttons. The projector is made of high quality and 100% non-toxic plastic with no sharp edges. See the package for installation and battery usage instructions.