Be Rid of insomnia with the White Knight sound machine, as it fills the room with rich, dreamy, comforting white noise. White Knight helps reduce distractions, provides added privacy, is widely used by professionals and helps get you well-rested, more focused and productive. RIPTUNES White Noise Sound Machine with 28 Soothing Sounds that include 12 white noise options, 3 nature sounds and a lullaby, plus 12 fan modes. white knight SM128 Sound Machine can help you feel more relaxed through the different sounds, help you fall asleep, do yoga, do sound therapy and much more. Ideal to give you privacy and get easier for you to relax before bed or practice yoga with stereo sound or by connecting a headphone jack for concentration, mindfulness and meditation.