1. Sleep Noise Machine: The rechargeable white noise machine provides 24 soothing sounds, including natural sounds such as wind, rain, thunder, electricity, running water, waves, as well as animal sounds such as crickets and birds, as well as lullabies and sleep aid music to help crying babies calm down and stay asleep, and also help adults sleep and relax.It also has a built-in recording function to capture 180 seconds of sound memory 2. Compact and lightweight: the white noise machine is suitable for babies to use when going out, traveling, and walking. Product size: 4 5.7 2.1 inch Product net weight: 6.9 ounces. The white noise machine has a lifting ring, which can be hung in diaper bags, strollers, cribs, etc. place 3. Comfortable Lighting: White noise machine with comfortable night light, it has 7 mood light colors and 6 adjustable brightness levels, soft light can protect 's eyesight and also provide enough light to take care of your at night while creating a comfortable environment for a restful night's sleep 4. Battery Life: The white noise machine has a built-in 2000mAh large-capacity battery, charging time is about three hours, playback time is over 12 hours after full charge.In addition, you can set the timer to 30, 60 or 90 minutes, and when the time is up, all sounds and night lights will automatically turn off