?Professional After-sales Service?If you have any questions, please don’t hesitate to contact us, we will serve you wholeheartedly. And our sound machine has approved by FCC, CE and RoHS, Don't worry about safety issues, use it at ease and comfort. ?Unique Design?Exquisite and portable with 4.13*4.13*2.6 inch, compact shape enables to carry around easily. Allows you to have a familiar sleeping environment like at home when you are outside. ?5 Timers and Memory Function?The auto-off timer can be set for 1/2/3/4 hours or continuous play as required. When you restart Sleepbox Sound Machine, our memory function will automatically remember your previous volume, sound and timer, no need to repeat adjustments. ?10 Colors Night Light and 4 Adjustable Brightness Levels?With 10 colors of lights, there is no need to get up in the dark at night, and it is easy to illuminate when the baby needs to breastfeed or change diapers. The light is soft and comfortable. And it’s equipped with four levels of brightness, which can be adjusted from off to one of the four brightness levels. Customize to your liking. ?25 Soothing Sounds and 32 Adjustable Volume Levels?There are 25 non-looping soothing sounds for you to choose from--White / Pink / Brown / Blue Noise, Fans, Rain, Brook, Sea Wave, Bird, Campfire, Train, Piano, etc. And it possesses 32 levels of adjustable volume, which can be easily adjusted according to different scenes and needs.