24 Soothing SoundsThe cute white noise machine provides 24 soothing sounds, including 6 white noises, 4 baby sounds, 4 sleep music and 20 nature sounds, such as white noise, gray noise, pink noise, rain, thunder, ocean waves, stream, fan, forest wind, stove, cricket, lullaby and Shusha. It is easy to quickly fall into deep sleep, suitable for babies, children and adults 3 Timer SettingsYou can set the timer to 30, 60 or 90 minutes or longer, and all sounds and night lights will automatically turn off after the time is up Powerful Battery and Recording FunctionThe white noise machine is equipped with a 350mAh rechargeable battery, which can play for more than 24 hours and only takes 2 hours to fully charge. Our sleep sound machine also has a recording function, allowing you to capture 180 seconds of your favorite sound memory and play it in a loop Wireless Speaker & Memory FunctionPortable sound machine with Bluetooth wireless speaker can seamlessly transfer your favorite sleep music from smartphone to speaker. Our noise machine has a memory function that can recall the last sound and volume level you selected when restarting, no need to reset it for next time Compact Design, Convenient TravelAll controls are conveniently located on the side of this noise machine, ensuring an intuitive and easy-to-use interface! The compact size comes with a carabiner, which can be hung on the crib, stroller or anywhere you need it. Perfect for travel and provides a comfortable sleeping environment in the room Specifications: Rated Power: 3W (maximum) Power Supply: DC 5V Input: 5V 300mA Speaker Size: 40mm, 5 ohms, 3W Battery Capacity: 350mAh Operating Time: 24 hours (in low-flow state) Dimensions: 80 x 78 x 29.8 mm Weight: 112 grams Bluetooth Version: V5.1