1. 28 high fidelity sounds: This white noise machine features an ultra-large, high-quality speaker to ensure you feel immersive and fall asleep quickly. 28 high fidelity sounds. Reduce your baby's stress and help your baby fall asleep better. 2. Volume adjustable: Press the volume control button on this white noise machine to adjust the sound volume to your desired level for a personalized sound environment. 3. USB rechargeable. The operations are simple and easy to understand. 4. There are timer options, the white noise machine remembers sound, volume and timer settings. 5. This noise maker is suitable for babies, home, office and travel. Sleek and compact design, easy to carry and use. Note: 1. The actual color may be slightly different from the picture due to different monitor and light effect. Please allow slight deviation due to manual measurement. Specification: Type: White noise machine Materials: ABS+PP+Cloth Power: USB Color: as picture show Function: 1. 28 high fidelity sounds 2. Smart memory function 3. Timing function 4. Eardrum protection 5. Low Power Consumption includes: 1 x white noise machine