【6 Wind Speeds & LED Display】Our charging fan has 6 wind speed settings, you can change different wind speeds by rotating the knob to meet different heat dissipation needs. With the visual LED display, you can easily check the current wind speed level and the remaining power. 【Low Noise】Our mini portable fan has an upgraded built-in low-noise brushless motor, which can rotate the blades at high speed to generate strong wind, and the noise level at the highest speed is less than 50 decibels, which will not disturb your sleep, work and study. 【Two Power Sources】Rechargeable battery or USB charging. This desk fan has a built-in 3600mAh rechargeable battery that provides extra-long usage time, ensuring you stay cool for a long time. This small fan can also be charged via USB, and the charging speed is very fast. Suitable for extended outdoor use. 【Free swing at 180°】The new table fan adopts a touch screen design. Press the "swing mode" button to instantly start 180° horizontal automatic