Otlonpe 2 Pack Portable Desk Fan 6.5 Inch, 4000mAh Rechargeable Battery Operated & USB Powered, 23Hrs Cordless Small Personal Travel Fan 4-Speed Quiet for Office Home Sleeping, Led Display, Foldable

Dual-Power Flexibility: Battery & USB OperationExperience true cable-free freedom with our versatile personal fan. It operates seamlessly on its built-in battery or any USB power source, making it the perfect desk fan for your office, a reliable travel fan for road trips, and an essential portable fan for outdoor adventureseven during unexpected power outages | Long-Lasting 23-Hour RuntimeStay cool all day and through the night. Equipped with a high-capacity 4000mAh battery, this rechargeable fan delivers an exceptional 5 to 23 hours of continuous cooling on a single charge. Say goodbye to frequent recharging and enjoy unwavering comfort whether you're working, sleeping, or exploring | 4 Customizable Speed SettingsTailor your breeze to any moment with our 4-speed adjustable fan. Choose from a gentle whisper for quiet work or sleep to a powerful gust for quick cooling after activities. This personal fan puts you in complete control of your environment | Under 45dB Ultra-Quiet OperationDesigned for peace and focus. This quiet desk fan operates at a library-quiet noise level of less than 45dB, ensuring it won't disturb your concentration, conference calls, or much-needed sleep. Ideal for the office, bedroom, or nursery | Thoughtful Designs for Effortless UseWe engineered this portable fan for ultimate convenience. It features a detachable front cover for easy cleaning, a 180 adjustable foldable bracket for perfect positioning, a built-in battery for emergency phone charging, and a clear digital display for an at-a-glance view of your settings