matone portable white noise machine for baby adults deep sleeping | 20 relaxing sleep sound, 3 adjustable night lights | rechargeable & touch-control sleep aid device for home nursery office - yellow matone do you often struggle to sleep at night because of an overactive mind or the external noise?<br> do you feel too hard to concentrate on your working or studying? <br> does your baby cry every night and you are looking for a helpful white noise machine to smooth him for a better sleep? <br><br/> <b>if yes, then matone white noise machine will be the best choice for you! </b><br><br/> <b>20 soothing sounds</b><br> this sound machine delivers 10 white noises, 7 alpha brainwave music and 3 arms music. all the sounds played are crisp, natural and realistic. simply pick your desired natural sounds to facilitate a restful night's sleep, or choose the relaxing alpha brainwave music to boost your focus while you study or work. <br><br/> <b>adjustable volume</b><br> flexible volume control allows you to adjust the volume according to different background, which effectively buffers outside noise disruption from noisy neighbors, barking dogs, snoring partners, chatty coworkers and city sounds. the wide range of volume (45~90db) makes it fit to users from all ages. a great noise machine for adults, kids and baby. <br><br/> <b>variety of uses</b><br> matone white noise machine is perfect for the people who find it hard to sleep, office workers, jet lag, late shifts and all of people with insomnia. you can also use it to tune out distractions, or help you focus and process information. great for yoga, working, studying, speech privacy and baby nursery. <br><br/> <b>specification</b><br> 1) 10 white noises: fans, waves, streams, rains, winds, howls, frogs, waterfalls, heartbeats, thunder<br> 2) auto-off timer: 30min/60min/90min<br> 3) battery capacity: 1800mah<br> 4) working time: 5~11h<br> 5) charging time: 1h<br> 5)size: 200*170*82mm<br> 6)weight: 320g <br><br/> <b>package:</b><br> 1*white noise machine<br> 1*user manual<br> 1*usb charge cable