Get Nature's Soothing Sounds Machine US. Douni white noise sound machine has 24 total sounds in three different categories:7 fan sounds; Aventek white noise machine has 30 gorgeous sound effects that will put you to sleep, calm or relax your mind or help you stay focused and study.
Sleep sound machine features various sounds and melodies to help you and your child fall asleep, relax, and block out background noise.
It can be powered by a mains adapter or four aa batteries and operation is as simple as turning the dial. Thanks to this excellent machine, you can enjoy a comfortable sleep in these soothing sounds. The soothing sound of white noise sleep machines makes you more attentive and interested in the subject at hand. Douni white noise sound machine has 24 total sounds in three different categories:7 fan sounds;