Small FanThe size of this desk fan is 5*2.7 *7 inch, and it weighs around 10.68oz. This mini fan taking up little room and easy to carry it room to room, very convenient to use. Powerful FanDespite the small size, this portable fan is as functional as a normal powerful fan. Equipped with 4 Adjustable Speeds, this desk fan can meet your various cooling demands, just press the power button to change the speed. Rechargeable Battery Operated FanThis portable fan is powered by 2*2000mAh rechargeable batteries(Battery Capacity in total: 4000mAh), 3.5~15 hours working time depend on different speeds. Comes with USB cable(Not include adapter), the USB fan compatible with any device with USB port (laptop, desktop, power bank, socket, power outlet) to get charged, energy-saving. User-friendly fanBattery capacity estimated remaining shown on the top of the base, easy to check in time. The front cover is removable, more helpful to clean the blades of this table fan. Personal FanLooking for a fan with less noise and more powerful airflow Try this desk fan, this fan would not let you down. Compact size, lightweight, rechargeable battery powered, 4 speeds available, head adjustable, ideal for home, office, dormitory, bedroom, study room, library, or carry out for camping or traveling. Small Quiet Desk Fan To Accompany Your Daily Life Highlights of Powerful & Quiet Desk FanBattery Operated & USB Powered Equipped with rechargeable battery, this small desk fan can be take to use outside. The USB cord can be removed after charged. Battery Type: 18650 Lithium Battery Battery Capacity: 4000mAh (2*2000mAh) Input Voltage: 5V Input current: 1A Power: 4W USB cable length: 2.6ft 4 Wind Speeds This upgraded portable fan has 4 wind speeds. There are indicator lights on the top of the base, easy to see which speed you set and adjust to the speed you want. Speed 1: 1800 RPM; Noise level: 20db Speed 2: 2200 RPM; Noise level: 30db Speed 3: 2500 RPM; Noise level: 40db Speed 4: 3000 RPM; Noise level: 50db Quiet Operation Adopted premium pure copper brushless motor with pleasant rotating speed, this small fan does not create much noise than most fans on market, keeping you cool without distraction. Small Size, Space-SavingCompact size make it possible to put on desk or other small space, no need to worry about the space. 90 Degree AdjustableThe head of this mini fan can be adjusted to suit for multiple angles, making the air out to the particular direction you prefer. Non- Slip MatsThere are four rubber mats under the bottom of the base to reduce vibration, making the fan stay on the desk stablely. Besides, it also helps protect the surface of the desk from scratching. Removable Front CoverThe front grille is removable, more convenient to clean the fan blades.