This is a great little portable white noise machine. I have it in my boys room and they love that it’s easy to pick different sounds! They love to fall asleep to the sound of the birds chirping! It has a lot of sounds and 3 different options for a timer. Great size for travel or to have next to the bed. Easy to charge with a usb charger. So far I have only charged it once initially and they’ve been using it every night for over a week!