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Upgraded 9 Inch Frame Desktop USB Fan
OPOLAR fan adopts brushless motor to keep its low noise, which quieter than most fans.
With detachable metal frame, this fan is very easy to clean.
Powered by a 3.9 ft USB cable - compatible with computers, laptops, notebook,car charger, power bank, 5V wall USB charger, 5V solar charger, even the phone charger.
Attention: Please note that this fan is only powered by USB cable. No battery or AC Adapter is included.