9 Soothing Sounds: Our white noise machine has 9 pleasant soothing sounds to create a relaxing sleep atmosphere and comfortable listening experience. It contains white noise, 3 lullabies and a variety of natural sounds like birdsong, ocean waves, rain, etc., relaxing your mind and body. Sleep Aid: The sound machine can effectively shield background noise, help people fall asleep quickly, and improve sleep quality. Features a soothing breathing light that rhythmically changes light brightness to induce sleep, creating a perfect atmosphere as a sleep aid for babies, children or adults. Timer & Memory Functions: The white noise machine can play continuously or be set on a 15, 30 or 60 minute timer for efficient and environmentally friendly use. Smart memory function automatically saves your previous volume, sound selection and timer preferences, no need to reset. Lightweight & Portable: With a compact size of 8 x 3.3 x 8 cm and a light weight of only 125 g, the white noise machine can be easily put in your bags and carried anywhere. USB powered with long standby time over 90 days, features simple and intuitive buttons, easy to use. After-Sales Service: We are committed to providing dedicated service to every customer and take responsibility for the quality of each product. Our goal is to win customer satisfaction with the best products and services. If you have any questions or suggestions, please contact us and we will respond as soon as possible.