Speed mode:3 ranges , with removeable table stand The structure of these fans is unique and fashionable. Using the brush and slotless motor , to ensure the high winds and long-life. Intelligent control system, reliable ferfomance, which is fully functional and easy operation. Using the intermational standard 18650 capacity lihium batteries ,that can be rechargeable, more universal. A professional portable fan with integration of design, simple appearance and firm structure.