The white noise machine is made of 12 different noise effects, which can be played individually or together based on your personal preference. Allowing you to freely customize your favorite sound combinations. The sound machine includes sounds such as rain, bird chirping, ocean waves, stream, campfire, train, crickets, and church bells etc. Cozy Night Light Modes: warm night light helps to strengthen it. Plus the turned on background noise, all these are offering you a good sleeping and working companion. Built-in Speaker: Apart from the 12 white noise effects that come , you can also connect the machine with your own device and play your favourite music or podcast, enjoying the most out of your leisure time! Moreover, it is an excellent gift choice for you to make for your family or friends. Efficient Plug in Design: You don't have to worry about running out of power any more! The white noise machine for sleeping is plug-and-play through a USB cord (included in the package). The intuitive button control enables an easy and effortless operation. [30-120 Minute Timer Settings]: The portable brown noise machine features an auto-off timer that can be set from 30/60/90/120 minutes . The sound gradually fades out until it turns off, making it the most considerate brown noise machine you'll ever own. colour: White material: ABS Package Contents: 1 x White Noise Sound Machine 1 x USB cable 1 x English Instruction Manual