9 NATURAL SOUNDS: It features white noise, wave sound, birdsong, waterfall, cricket sound, bicker and 3 lullabies, so that you can choose sounds according to your preferences and needs to create a quiet environment for you to fall asleep quickly and rest completely .
PORTABLE DESIGN: Only 8×8×3.3cm. It takes up a small space on the bedside table and can be easily put into your bag or suitcase, making it the perfect travel companion.
NOT JUST FOR SLEEP: This white noise sound machine not only masks noise and improve sleep quality, but it is also suitable for use at home, in the office, in a dorm, in a baby nursery or anywhere you want.
AUTOMATIC SHUTDOWN TIMER: This white noise machine can be played continuously non-stop all night or there is an auto-off timer to set for 15, 30 or 60 minutes to conserve energy.(light display).
It features built-in lithium battery and USB charging. It can be used continuously for 36h on a full charge.