Features 9 kinds of smooth and 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: our white noise sound machine not only masks noise, improves sleep quality, but also is 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 a light display and according to the light, you can adjust the breathing in 10 minutes to make your body relaxed. It features built-in lithium battery and USB charging. It can be used continuously for 36h for a full charge. Specifications Item type:Sleep instrument Material:ABS+PC+silicone+electronic components Color:white Quantity:1pc Power: 1W Input Voltage: DC5V Working voltage: 4.2v Use time: 30-36h Charging time:1- 1.5h Charging current: 1A Charging method: USB Battery:lithium battery (included) Battery capacity: 1200MA Size:8*8*3cm/3.1*3.1*1.2” Net weight:175g/6.2oz Package 1*Sleep instrument 1*USB charging cable

9 kinds of smooth and 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: our white noise sound machine not only masks noise, improves sleep quality, but also is 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 a light display and according to the light, you can adjust the breathing in 10 minutes to make your body relaxed.