portable battery powered fan

8 Inch Desk Fan 3 Speeds Trekoo USB Table Fan Rechargeable Battery Power Operated Air Circulator for Personal Cooling Bedroom Camping $18.99
❄️QUIET USB FAN - This desk fan has a low sound of 30dB which offers a quiet environment to you while working or sleeping.
❄️3 SPEEDS - Equipped with 3 gears of wind speed, the small table fan provides comfortable personal cooling experience.
❄️DUAL POWER SUPPLIES - This battery operated fan can be easily powered by a 2000mAh rechargeable battery (included), or just a simple USB cable.
❄️COMPACT DESIGN - Size at 7.7 x 4.6 x 8 inch, weight of 0.81LB. Ideal portable camping usb fan for tent, clinic and travel.
❄️360 PIVOTING - This usb fan can also be used as an air circulator. User friendly manually 360-degree pivoting head to choose wind direction as your will and circulate the air in your room.
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[greydogmusic]

Enjoyed the review. I could have missed it. I don't know if you mentioned how long it will run on the internal battery. I will guess the info on Amazon is correct. I have a Opolar with a 10, 000 battery built-in. Which I love. And tonight I ordered a 2nd Opolar. One that uses 2 replaceable 18650 batteries for 5200mAh. Wish I could see this fan next to the 7 inch Opolar to see if it is less powerful since the battery is smaller. Or is the wind about the same just doesn't run as long with the battery difference. If it is as powerful as the Opolar, or close, this would be a cheaper alternative and run off a separate battery. Which I already have. This price is about half what the two Opolar's cost. So It most likely will be my 3rd fan since I have battery banks already.