Power supply: solar energy Noise: below 36dB (A) Wind speed gear: 3 speeds Color: black, pink, blue, purple, white Size: 9.5*5cm/ / 3.71"*1.95" Whether built-in battery: built-in battery Built-in battery capacity: 800mAh (including) Fan: cap fan Using time: the highest gear 4-5 hours Full time: the lowest gear 10-11 hours USB charging 1-2 hours or so Solar charging 16-24 hours Charging indication: lightning mark flashing while charging Charging port: type-c Usage: long press on to enter 1st gear-2nd gear-3rd gear-4th gear-5th gear-cycle-long press off 1. Adopting high efficiency solar panel, it can work continuously even under weak sunlight, energy saving, environmental protection and money saving. 2. ultra-quiet design, the fan runs smoothly and noiselessly, suitable for various outdoor scenes such as patio and terrace. 3. Adjustable angle bracket, flexibly adjust the fan direction, let the coolness come with your heart, enhance the comfort of summer. 4. waterproof and dustproof structure, adapt to all kinds of bad weather, eliminating the trouble of frequent maintenance. 5. Simple and quick installation, no extra wires or batteries, plug and play, so you can easily enjoy the convenience of green energy. Package Includes:1*Hat Fan Translated with DeepL.com (free version)