Mask distracting noise and get better rest with the LectroFan Alpha Sound Machine that’s small enough to take anywhere. PRODUCT HIGHLIGHTS Masks distracting noises for better relaxation 7 relaxing sounds including 2 fans, 2 white noise variations (pink & brown noise), 2 ocean wave variations, and a heartbeat sound The built-in battery recharges with the included USB cable Each charge lasts 40 hours at normal volume Small, travel-friendly design with a convenient clip foldable, built-in stand Designed in the USA Dimensions: 1.8 x 4 x 3.8 in The Lectrofan Alpha is a small, travel-friendly sound machine designed to take you anywhere. It plays 7 high-quality, relaxing sounds: 2 different fans, 2 white noise variations (pink and brown noise), 2 ocean wave variations, and a heartbeat sound to soothe an infant or toddler. It recharges with the included USB cable, so there’s never a need to bring batteries, and it plays for up to 40 hours per charge at normal volume. The included clip makes it easy to attach to bags, strollers, car seats, cribs, or just about anything.