The best sound machine! Actually works!! Love this brand!! Great for sleep, kids, guests Top highlights Color White Brand Adaptive Sound Technologies Material Plastic Power Source Corded Electric Item Depth 4.4 inches Model Name LectroFan High Fidelity White Noise Machine LectroFan Classic: This compact sleep sound machine from Adaptive Sound Technologies offers 20 non-looping (non-repeating) sounds, including fan sounds and white noise, to foster a tranquil sleep environment or provide speech privacy Noise Masking Mastery: With precision volume control, the LectroFan sleep machine for deep sleep drowns out disruptive noise, helping to support sleep and relaxation for all ages Sleep Timer Feature: Equipped with a convenient sleep timer, this sleep device can be set to automatically turn off, ensuring energy-efficient use while you drift into peaceful slumber Portable Design Specs: Lightweight and USB-powered, this white noise machine for bedroom or travel measures 4.4 x 4.4 x 2.2 inches, perfect for on-the-go restorative rest Innovative Solutions for Better Sleep: Adaptive Sound Technologies is focused 100% on designing, building, and selling quality and innovative sleep sound machines