High Fidelity & Loopless 20 Soothing Sounds - LSSEDA White Noise Machine features 3 White Noise, 3 Fan Sounds, 3 Rain Sounds, 3 Ocean Waves, 2 Lullabies, Water Flow, Campfire, Birds, Cricket, Ticks, heartbeat. Choose the channel and get ready for your personalized sleep therapy Warm Night Light Protects Baby's Sweet Dreams - This sound machine has an optional night light that provides a good sense of security and allows babies to fall asleep naturally. Auto-Off Timer Opinion - The sound machine allows you to set selectable 15, 30 and 60 minute auto-off timers without having to get up to turn off this unit or let it play all night. EASY TO USE AND MEMORY - Whether you're napping, relaxing, meditating or concentrating while studying or working, Sound Machine will remember your last set sound and volume level the next time you turn it on. BATTERY POWERED AND PORTABLE - This white noise speaker comes with a 1200hAm battery that gives you 30 hours of use when fully charged. It's compact and lightweight, making it easy for office and travel use. It fits easily into your purse, bag or suitcase, and you can take it with you wherever you go, you'll never have to worry about sleeping in an unfamiliar environment again. Package includes: 1 x White Noise Machine (battery not included)