The First Years Sounds For Silence Nursery Sound MachineWhen your baby is crying and you don?t know what to do it can be quite stressful. The Sounds For Silence Nursery Sound Machine was co-developed with Dt. Harry Zehnwirth who has over 25 years of pediatric experience. Dr. Harry developed the unique sounds you will hear on your machine along with the Simple Secrets booklet. This program is an effective tool to help settle your baby quickly. Settled babies equal settled parents.Features include: Sounds For Silence ? 6 specially developed white noisesMozart Melodies ? 6 soothing melodies to help baby focus during feeding and massageSleep Timer turns unit off in 60 minutesBattery Powered option for portability (batteries not included)Simple Secrets for Settle Babies Booklet