Geekdigg Aurora Master Romantic Ocean Wave Light Projector Multicolor Ocean Light LED Night Light Lamp with Music Speaker for Kids Children Christmas Gift (Ocean Wave Night Light Projector) Projected swinging light like a ocean surface on ceiling or wall, create an enjoyable and relaxing bedtime experience for kids and children, soothe and comfort kids to sleep, also perfect for adults to relax at Bathroom or living room Powered by Battery or USB: 4 AA batteries required (not included), or connected to the AC adapter (included) 8 Light Projection Modes: red, blue, green and multicolor, bring the real seaside home to you, and create the greatest atmosphere for dating, relaxing, sleeping and bathing Built-in mini Speaker & Volume adjustable: plug in an iPod, MP3, cell Phone, iPhone or other device, enjoy the music while the light projection Automatic shut off after 1 hour, you can go to asleep with it and it will shut off itself, very energy-saving, and really convenient for kids bedroom, perfect Christmas gift for children and kids