Functionality confirmed without water. Color: Black 7-color LED light, 2 humidification modes, automatic shut-off. ✨ Although it's 5mm longer, I'll include replacement wicks for a different diffuser that I'm not using. This humidifier has a dry-run prevention function, perfect for use in the bedroom. Easy to clean and energy-saving design. Humidification time: Continuous approximately 4 hours ~ intermittent operation approximately 8 hours. Ultrasonic type with 3-level mist adjustment, effective for dryness prevention. Desktop size, small, USB rechargeable. Also has a disinfection function and is convenient for top-fill water. Compact and can be used quietly in the office. Perfect for dryness and hay fever対策. Humidifier Desktop Small 【2023 Ultrasonic, Energy Saving, No Cable Needed】 Ultrasonic type, quiet, USB rechargeable, 300ml large capacity, aroma diffuser, automatic power off, energy saving, desktop humidifier, dryness prevention, dry-run prevention, top-fill water, ultrasonic humidifier, compact, easy to clean, stylish, office, bedroom, living room, room use, cordless, hay fever対策, disinfection (Black) 7-13$3760.1500.1240(1200)