【2-in-1 Fan & Humidifier】Combines a cooling fan with a humidifier to keep the air moist and refreshing during hot summer days. 【Adjustable Wind Speed】Features 3 wind speed modes to suit various cooling preferences. 【Foldable & Adjustable Design】Freely adjustable angle and foldable structure for targeted airflow angle and convenient storage. 【USB Charging】Powered by USB with a built-in rechargeable battery, ideal for use at home, in the office, or on the go. 【Compact & Portable】Lightweight and easy to carry, perfect for desktops, bedside tables, and travel use. Specification: Power supply mode: built-in battery Noise: 36dB or less Rated voltage: 5V Rated power: 2W Air supply method: head shaking Wind speed gear: third gear Mode of operation: mechanical Charging: support Way of shaking head: left and right Stop automatically when falling: not supported Turning blade fan: Yes Built-in battery: Yes Built-in battery capacity: 4000 mAh Function: humidification, fan, shaking head Motor type: brushless motor Number of fan blades: 5 leaves Shell technology: ABS