Beautiful dolphin sounds with high quality and it helps to relax and sleep. Do feel stressed? Overworked? Want to Sleep Better? Close your eyes, put on a headphone , touch this application. You can choose the song you will listen to. You can choose how long the music will play. √ Great quality of the sound √ Absolutely Relaxing! √ The best relaxing sound! √ Truly miraculous relaxation that will keep you feeling rejuvenated once more. About dolphin sounds: Dolphins are capable of making a broad range of sounds using nasal airsacs located just below the blowhole. Roughly three categories of sounds can be identified: frequency modulated whistles, burst-pulsed sounds and clicks. Dolphins communicate with whistle-like sounds produced by vibrating connective tissue, similar to how human vocal cords function, and through burst-pulsed sounds, though the nature and extent of that ability is not known. The clicks are directional and are for echolocation, often occurring in a short series called a click train. The click rate increases when approaching an object of interest. Dolphin echolocation clicks are amongst the loudest sounds made by marine animals.