Material: ABS + electronic components, with English instructions and 1 lanyard. Rated power 5W, battery capacity 1000mAh, with 3.5mm earphone jack, Product size: 10 * 10 * 4.6cm. Music playback function: A total of 16 kinds of built-in sleep soothing music, including white noise, dividend noise, emotional soothing music, soothing music, waves, birdsong, running water, rain, summer night insects, lullabies, etc. Automatic timing selection: 15, 30, 60 minutes. 16 Soothing Sounds: These white noise machine for sleep provide a variety of different sounds including ocean waves, rain, bonfire, stream, and birds... Equipped with 8 nature sounds, 3 types of light music, 2 songs of piano music, and 3 lullabies, allowing you to choose the perfect sound for your sleep, relaxation, or focus needs. Timer and Memory Function: The travel white noise machine baby can play continuously or be set with a timer for 15, 30, or 45 minutes. It will restart with the last sound played, easing your stress and anxiety and promoting a calm and relaxed state. Breathing Light: This portable white noise machine baby has a soothing warm night light design with a soft gently breathing light, creating a calming and peaceful environment. And it is also convenient for you to take care of your baby at night. Long Battery Life: With a large 1000mAh capacity battery, the little sleep aids for adults can play continuously for up to 38 hours without the light on, and 24 hours with the light on. You don't have to worry about running out of power, providing a comfortable environment for you to concentrate on work or study. Portable Design: The white noise machine for adults is small and portable with a lanyard. Put it in your backpack and handbag, or hang it on the stroller. The sleep noise machine is perfect as a gift for yourself or your baby.