Ecotones Duet Sleep Sound Machine, Black The Ecotones family of Sleep Sound Machines from Adaptive Sound Technologies is designed to provide the most realistic, natural sound environment possible to help people relax and sleep better at night. Each device includes ultra-high quality natural sound recordings for the most realistic listening experience. They use ASTI's patented Adaptive SoundTM Technology that listens and responds to background disturbances. The Ecotones family delivers a relaxing and peaceful environment wherever it is needed. Details 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 More Details MedexSupply.com is an Online Medical Distributor since 1999. MedexSupply has more than doubled in sales and inventory in the last year and has high-quality online presence. We offer a variety of Medical, Surgical, Lab, HME, DME, Exam Room, EMS Supplies and more.