This sleep speaker with advanced speakers provides realistic natural sound simulation, so you or your baby can go faster and deeper into sleep, meditation, yoga or nap. Adjustable volume makes it easy to create personalized sound environments, masks background noise, improves sleep quality, protects office privacy, effectively calms children and babies, and calms dogs sensitive to sound. This sound machine can play 28 soothing sounds, including 2 fans, 3 white noise, 3 rain sounds, 3 stream sounds, 3 sea waves, 2 campfires, 3 hymns, 3 alpha waves, 3 meditation sounds and 3 birdsong. It has different sound keys, so you don't have to scroll through each sound to find what you want. Play natural sounds and sleep sounds to help you sleep deeply and relax, suitable for adults and babies. [Warm Night Light, Comfortable Sleep] This white noise machine is equipped with an optional night light to emit enough light for babies to feed at night. In addition, studies have shown that children fall