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, and more, helping to relax your mind and body. Sleep Aid: The sound machine can effectively block background noise, assist in falling asleep faster, and improve sleep quality. Features a breathing light that rhythmically changes light brightness to promote sleep, creating a calming environment ideal 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 eco-friendly use. The smart memory function automatically saves your previous volume, selected sound, and timer settings, so there's no need to reset them. Lightweight & Portable: With a compact size of 8 x 3.3 x 8 cm and a lightweight design at only 125 g, the white noise machine is easy to carry in bags and take anywhere. Powered via USB with over 90 days of standby time, it features simple and intuitive buttons for effortless operation. After-Sales Service: We are committed to providing dedicated service to every customer and stand by the quality of each product. Our goal is to deliver customer satisfaction through high-quality products and services. If you have any questions or suggestions, please contact us and we will respond promptly.