This home humidifier utilizes advanced ultrasonic technology to quickly increase indoor humidity levels and effectively relieve dryness discomfort Smart humidity control system continuously monitors environmental humidity and automatically adjusts mist output to prevent over-humidification or insufficient moisture Large 2-liter water tank capacity provides extended operation for overnight use, perfect for bedrooms and office spaces Ultra-quiet operation below 25dB ensures peaceful environment without disturbing sleep or daily activities Multiple stylish color options including pure white, soft pink, elegant gray, and fresh green to match various home decor themes USB power supply offers flexible placement options, compatible with power banks, computer USB ports, and car chargers 360-degree rotating mist nozzle allows adjustable humidification direction for even moisture distribution Automatic shut-off protection when water runs out ensures safe operation and peace of mind while enjoying comfortable humidified air