I was excited to use this as I sleep with a fan on every night... more for the noise than the circulation.

I am amazed by how lightweight this little box is.  As a traveler, I am super excited about this as it will fit well in my suitcase/bag without adding any extra weight.  

This can be used with a cord or with batteries.

There are 6 sounds on the box.  My favorite out of all is "Summer Nights" which is the sound of crickets chirping.  The other sounds are nice as well but summer nights was very realistic. [This review was collected as part of a promotion.]