WoneNice Mini Usb Bladeless Fan Rechargeable Ultra-thin Handheld Creative Air Conditioning Fan, Battery Operated Summer Personal Pocket Fan, White Configured with a USB cable,700 mAh lithium battery,high-speed brushless motor With the size of common mobile phone,ultra-thin and convenient to carry Sleek, inconspicuous design - no one will notice it is a fan Keep your cool and stay one step ahead of the competition with this sleek,quiet,lithium battery-powered fan No need to buy batteries, recharges like an iPhone