Amazon.com: Ecotones Duet Sleep Sound Machine, Black: Health & Personal Care
* 10 high quality natural sound recordings create the most realistic and natural sleep environment possible
* Adaptive Sound Technology listens and reacts to the environment
* Three richness settings control a broad range of additional sounds for optimal sleep conditions
* Optional sleep timer and display controls provide optimal night time operating environment
* Adaptive and Manual operating modes
Ecotones Duet Sleep Sound Machine $99.99 FS 
