💚【 Lasts Longer】Equipped with two rechargeable 2600 mAh batteries, with the working time of 6-9 hours this battery and USB fan is environment-friendly and energy saving. Please take the little white tap out when first use. 🆒【Quieter Fan】Everybody loves a fan that does not make noise. This fan is exactly what you want. Its noise is less than 40dB, which creates a quiet environment for your work and sleep.
💚【Multiple Power Supplies】The ease of use is what OPOLAR always brings to you. This fan comes with several power supply options so you can use it on batteries or via USB by connecting to a computer, power bank, etc. You can even power the fan with a wall adapter. Note: This fan cannot be charged with regular battery, except top flat 18650 Li-ion battery. 🆒【Adjustable metal frame】The fan has a 9-inch sturdy metal frame that can be adjusted 360-degree up and down manually so you can choose the wind direction easily according to your height or position. 💚【Easy to clean】The metal frame is easy to move. The blade can be cleaned with the wet cloth.