【Foldable Design & Multi-Use】The portable USB table fan can be folded up to 180°. You can hold this fan comfortably in your hand or simply fold the handle and place it on the desk 【5 Adjustable Speed Levels】This mini fan has 5 speed levels (low/medium/high/sleep mode) which can be adjusted by repeatedly pressing the power switch. Sleep mode can avoid headaches and nasal congestion caused by persistent strong wind and meet people's physiological needs. 【Exclusive Battery Capacity Indicator】With the battery capacity indicator, you no longer have to worry about not charging the fan in time because you can't see the battery capacity, besides, the fan can be used for emergency charging of mobile phones 【Rechargeable Battery Fan】With the 4000mAh rechargeable lithium-ion battery, the small fan is extremely portable as no cable wiring is required and can be used both indoors and outdoors. Charging with the included USB charging cable. 【Removable for Easy Cleaning】To be more environmentally