Sounds to help you enter the delta state of consciousness are presented through a background audio player. Delta consciousness is associated with rest and regeneration. Restful Delta sounds can be played alone or under other music of your choosing. The volume level of Restful Delta is a percentage of your overall media sound level. Restful Delta can be set to be a subliminal background sound, or used as a stand-alone sound. Because of the rhythmic nature of Restful Delta, people with epilepsy should consult with their health care provider before using Restful Delta.