Waist Fan
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Stop sweating through your day.
The Waist Fan WF01 clips to your belt and blows a steady stream of cool air under your clothes — speeding up sweat evaporation and pulling heat away from your skin instantly. No holding. No stopping. Just cool air, all day long.
WindBillion Waist Fan WF01
Up to 28 hours
9800mAh — full day, no recharge needed
4 speed levels
0.7W quiet to 4.9W full power
Only 300g
Wear all day — forget it's there
USB-C fast charge
Full charge in 5 hrs, any phone charger
Works everywhere you do
Built for anyone who spends long hours outdoors — working, hiking, traveling, or simply enjoying summer. The Waist Fan WF01 clips to your belt and keeps cool air flowing under your clothes all day. At just 300g with up to 28 hours of battery, it’s light enough to forget and strong enough to last.
Work
Hands free on the job
Clip to belt, keep both hands on tools. Works in 40°C heat without slowing down.
Outdoor
Light enough to forget
300g won’t weigh down your pack. 28hr battery outlasts any full-day hike.
Live events
Dance all night, stay cool
Hours in a packed crowd? Clip on and enjoy the show without breaking a sweat.