Mask Fan Convenient Clip Fan Usb Charging Small Fan Specification: new and high quality. Quantity: 1pc. :ABS. Color:White Power supply: USB Noise: 15dB Rated voltage: 2A Wind speed gear: 3 gears mode: mechanical Built-in battery capacity: 230mAh Battery life: 1.5-3 hours Product size:7.2x3.45x1.9cm(2.52x1.1x0.63in). Packing size:11.5x6.5x2.5cm(4.5x2.6x1in). Product net weight:0.02kg/0.044lb. Product gross weight:0.045kg/0.1lb. Feature: NEW DESIGN - To fit perfectly on the face, the fan was made of -friendly and designed ergonomically to fit perfectly on the face, feeling weightless. Never worry about the cool-ing continuous cool, it's odorless, was available for children and adults. CIRCULATION & C00L-ING - The mask fan speeds up the circulation of inside the mask. It can cool the inside the mask when it is hot or stuffy when you wear the mask for a long, and at the same keep the inside the mask fresh so that you can-sh all the. The volume is up to 40 liters per minute. COMPACT & PORTABLE - The mask fan is small and lightweight, weighing just 0.8 ounces, and doesn't put too much pressure on the ears. It applies to all masks. It on-ly needs to be clipped to the mask, users can -sh and enjoy the cool instead of enduring the stuffy feeling of wearing a mask for a long. -QUIET - Equipped with high efficiency brushless motor, the face shie-ld cool-ing fan can run stably for several hours and effectively reduce noise. LONG - The mask fan is rechargeable and can be switched between two modes. The continuous blowing mode can last up to 1.5 hours, and the intermittend blowing mode can last up to 3 hours. It takes about 1.5 hours to recharge the fan runs out. Instructiongs: Because the size of the product is measured manually, there may be errors. Package Contents: 1x Fan 1x Usb Line