18 Non-Looping Sounds: This sound machine offers 18 soothing sleep sounds, including tranquil nature sounds, calming ambient noise, gentle white noise, and lullabies suitable for babies. These sounds help both babies and adults fall asleep easily, creating a comfortable and peaceful sleep environment that caters to various moods and preferences.User-Friendly Memory Function: The white noise sound machine prioritizes user experience by automatically remembering the last used settings, so you dont have to reconfigure it each time. Its sleek design seamlessly blends with any home decor, allowing you to enjoy serenity while enhancing your living spaces aesthetic.Long-Lasting Battery Performance: The bird chirping sound can be played at medium volume for up to 30 hours. Adjust the volume to enjoy extended playback, perfect for overnight use. It comes with a handy hang strap and a Type-C charging cable for effortless portability and charging. This ensures reliable sleep support even during travel or power outages, reducing the hassle of frequent recharging.Mini and Portable Design: Our portable sound machine features a compact and lightweight design, measuring only 1.97 x 1.97 x 1.54 inches and weighing just 2.39 oz, making it easy to fit into your bag or pocket. It is the perfect companion for home use, travel, or outdoor activities. Wherever you are, it provides convenient access to soothing sounds, ensuring relaxation is always within reach.32-Level Volume&Timer Function: The noise machine features a timer function that allows users to set a maximum playback time of 6 hours, ensuring it shuts off automatically to conserve battery life. Additionally, with 32 adjustable volume levels, whether you prefer a soft whisper or a more robust sound, our machine can be finely tuned to match your preferences for optimal comfort.