28 High-fidelity Sounds: This white noise machine features is an ultra-large, high-quality speaker to ensure giving you an immersive feel and falls asleep quickly. 28 High-fidelity Sounds. Reduce your babystress and help your baby fall asleep better. Adjustable Volume: Press volume control button on this white noise machine to adjust sound volume to your desired level for a personalized sound environment. USB rechargeable. Operations are simple and easy to understand. There are timer options, the white noise machine remembers the sound, volume and timer settings. This noise maker is suitable for baby, home, office and travel. Stylish and compact design, easy to carry and operate. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement. Specification: Type: White Noise Machine Material: ABS+PP+Fabric Power supply: USB Color: as picture shows Function: 28 high-fidelity sounds Intelligent memory function p> Timing function Eardrum protection Low power consumption includes:1 x White Noise Machine