Includes (10) different sounds and (3) projection cartridges (Sleepy Sky, Soothing Sea, and Calming Rainforest) that can be stored behind unit when not in useProjector lens rotates to project images onto the wall or ceiling - timer feature allows for automatic shut-off after 15, 30 or 60 minutes of continuous playVoice activation feature turns device on in response to baby's cryPlease only use with provided power adapter. Use with another power adapter may result in damage to system.Includes 1-year limited warranty