This device is just what the doctor ordered for those kids that have a hard time going to sleep or staying asleep. It has six different sounds and can either run for a certain amount of time or stay on all night (if all-night, you had better keep it plugged into the charger). It is easy to operate and has the following buttons: power, volume down, mode, volume up, timer.
We purchased it as a present for a friend who has a new child to use in the nursery. We are sure it will help the child get good sleep.
Note: the unit came with charging cable but not USB adapter. You will need to provide that yourself, though just about any USB phone charger will work just fine.