Go to sleep easily wherever you are with this mini sound therapy machine. This machine offers 4 soothing sounds to create a calming, relaxing atmosphere. Choose from Gentle Rain, Ocean, Everglades or White Noise. The compact, lightweight size of this little system makes this perfect for traveling and will not clutter your bedside table. It runs on 3 AAA batteries (not included) so you could even take this camping or where you do not have easy access to electricity. The system also features an auto-off timer with shutoff options of 15, 30 or 45 minutes.