The Original Sound Pillow® Sleep SystemThe original twin size hypoallergenic Sound Pillow with embedded stereo speakers and a 2GB MP3 player. Features MP3 player comes pre loaded with 18 one hour tracks of ultra relaxing binaural music, nature sounds, white and pink noise Features two virtually undetectable speakers buried inside the pillow Plug the pillow's standard headphone jack into your personal listening device The preloaded tracks are specifically designed to slow down the brain,