ASTI Adoptive Sleep Therapy System is a high quality sound machine which has the ability to adapt to disruptive noise in your room. It has a timer and head phone jack. It offers 10 completely adjustable sound modes and a clear, easy to use display panel. This unit is beneficial to those person dealing with sleep challenges and Tinnitus. It is gently used. There are no marks or scrapes on the display panel. It is as new. The user manual is included. Ear buds can be provided.