BearsFire&reg; Mermaid Fan Portable Battery Fan USB Mini Foldable Personal Cooling Fans with Umbrella Hanging and Metal Clip Fan for Home and Travel (Green) Unique portable fan design, creative style, made of high-quality ABS, has a solid structure and pressure-resistant Multi-speed adjustable power fan, free to turn down or turn up air volume with the stepless speed technology. Efficient power and conversion circuitry can minimize the loss to save energy and protect environment Rechargeable battery operated fan, the USB powered fan comes with a rechargeable and replaceable 1500MA 18650 Li-ion battery, can be charged by USB charger, computer, power bank USB mini foldable fan, can be used as a desk fan, clip fan, portable hand fan. With a hanger and a metal clip can be attached to umbrella, baby carriage, desktop, tent ect Beautiful Mermaid Fans, Great travel fans for cooling or beauty in hot weather activities like sun bathing camping