Feature:1. White noise is not only beneficial for improving sleeping quality, but also for improving concentration and working efficiency.2. White noise is also very similar to the sound of moms womb, which can greatly soothe the baby; also suitable for students, young people, and the elderly.3. Built-in 6 soothing sounds for option: rain, forest, waves, stream flowing, lullaby, and white noise, each kind can greatly aid sleep.Specification:FeaturesWhite noise is not only beneficial for improving sleeping quality, but also for improving concentration and working efficiency. White noise is very similar to the sound of mom's womb, which can greatly soothe the baby; also suitable for students, young people, and the elderly.Built-in 6 soothing sounds for option: rain, forest, waves, stream flowing, lullaby, and white noise, each kind can greatly aid sleep.With breath light, soft warm light can create an environment which is more suitable for sleeping, helping you entering the sleeping state quickly.Built-in 1200mAh large capacity battery with long working time up to 30 hours, can be easily charged through power bank, adapter, computer, etc.With intelligent timing function, convenient for use; compact size and light weight, good for home use, office use, and travel use.Specifications Color: White Material: ABS/PCRated Power: 1.5WColor Temperature: 2700K-3100KWorking Temperature: -10-55Battery Capacity: 1200mAhCharging Time: 1.5 hoursWorking Time: 15-30 hoursProduct Size: 9 * 9 * 3.1cm/ 3.5 * 3.5 * 1.2inchProduct Weight: 115g/ 4.05ozPackage Size: 9.2 * 9.2 * 6.5cm/ 3.6 * 3.6 * 2.5inchPackage Weight: 165g/ 5.8ozPackage List1 * Sleep MachinePackage List:1 * Sleep Machine