Safe and Durable BatteryThis portable neck fan adopts high quality Polymer battery, which is better in safety performance, providing all-round protection including overcharge and short circuit protection. Plus long lasting up to 22 hours under the most energy-effective setting, it is a must-have gadget during outdoor travel, on the way to work and more. Hands Free & High FlexibilityThe neck fan can be wore around your neck steadily with wider edge. Hang it to free your hands, so that you can take a walk, read a book, relax or work with cool breeze all along. Configured with soft yet sturdy flexible pipe, enabling the fan to be adjusted in 360 degrees. Place it on the desktop or wear it around neck, and enjoy the cool wind where you need it the most. Natural Wind Mode & Strong Wind3 speed settings plus respective natural wind mode available on each setting, the battery is more durable on one charge. High performance motor, this wearable neckband fan delivers strong wind on the highest speed. (Please note: Under natural wind mode, the wind speed varies between high speed and low speed cyclically) Use AnywhereEasily rechargeable via the USB cable, the neck fan can be powered up by wall charger, power bank, computer and any other devices with USB output. Carry this hanging neck fan everywhere, such travelling, working, hiking, camping, bicycling and more, no more troubled by sweating and sticky T-shirts.