I love my big red rooster sound machine it's so calming. Since I started using this my baby sleeps better and so do I. There are 6 sounds the rain and thunder are my favorite but there's also white noise, a brook, ocean and summer night and there all just as calming. Theres a 15, 30 and 60 min timer I don't use it I just let it play through the night so we don't have to hear the trash trucks at 5am every day. It's small so easy to travel with and if you forget the adapter you can put batteries in it which is perfect for me since I tend to forget my chargers. The big red rooster sound machine is the best sound machine I've ever used. [This review was collected as part of a promotion.]