Features 1、9 kinds of smooth and natural sounds: It features white noise, wave sound, cricket sound, rain sound, birdsong, bicker and 3 lullabies, so that you can choose sounds according to your preferences and needs to create a quiet environment 2、Portable design: 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 3、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 4、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) 5、It features a light display and according to the light, you can adjust the breathing in 10 minutes to make your body relaxed Specification This machine is specially designed for sleeping and relaxation. It has 9 kinds of smooth and natural sounds, features white noise, wave sound, cricket sound, rain sound, birdsong, bicker and 3 lullabies, so that you can choose sounds according to your preferences and needs to create a quiet environment. It 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. A great helper for you! Features: 1. 9 kinds of smooth and natural sounds: It features white noise, wave sound, cricket sound, rain sound, birdsong, bicker and 3 lullabies, so that you can choose sounds according to your preferences and needs to create a quiet environment 2. Portable design: 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. 3. 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. 4. 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). 5. It features a light display and according to the light, you can adjust the breathing in 10 minutes to make your body relaxed. 6. It features built-in lithium battery and USB charging, can be used continuously for 30-36h for a full charge. Specification: Item Type: White Noise Machine Material: ABS Item Color: White Charge Method: USB Cable Power: 1W Battery: Li-ion18650-1200mAh Charging Time: 1-1.5h Use Time: 30-36h Charging Circle: 500 times Item Size: Approx. 8 x 8 x 3.3 cm / 3.1 x 3.1 x 1.3 inch Package Weight: Approx. 171 g / 6 oz Package Include: 1 * White Noise Machine 1 * USB Cable 1 * Manual Note: 1. Please read the manual carefully before use. 2. Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid.