Treat yourself to the best sounds for sleeping - 17 Real Fan Sounds with Oscillation - 5 Ambient Tracks - 3 Alarm Sounds - Record your own sound loops SleepFan is New & Improved This version of SleepFan does everything better. We have listened and responded to our customer complaints with this -- the best SleepFan ever. The Fans - SleepFan currently includes 17 fan sounds, theres something here for everyone. Of course, you can also add your own fan sounds. Your recordings are made into seamless audio loops. You can adjust oscillation and stereo effect on your own recordings, too. The Backgrounds - Ambient sounds (5 included) are stereo tracks, unaffected by fan oscillation. These noise sources can be used solo or mixed with a fan sound. You may also add your own sounds to the Ambient tracks, but they will be mono (since most devices dont have stereo microphones). Timer & Alarms - Five alarms are included, but you may record your own. If no alarm is chosen, Timer will still shut down the fan and ambient sounds after your requested duration. To all that have provided feedback, we thank you!!