CD One Delta: Sleepy Summer NightThe sounds of a warm summer breeze and evening crickets combined with Delta brainwave pulses lulls you effortlessly to deep restful sleep. CD TwoAlpha: Ocean Surf RelaxationSoothing sounds of the Pacific Ocean rolling onto the shores of Olympic National Park combined with Alpha brainwave pulses leads you to states of rejuvenating relaxation. CD ThreeTheta: Rainforest MeditationLush sounds of the Brazilian Rainforest combined with Theta brainwave pulses will help you to clear your mind and guide you easily to states deep meditation. CD FourBeta: Cool RiverThe sounds of a cool mountain river combined with high Beta brainwave pulses will uplift your spirit and heighten your mental performance, focus and concentration.