JISULIFE Handheld Turbo Fan [16H Max Cooling Time] Mini Portable, 4000mAh USB Rechargeable Personal, Battery Operated Small Pocket Fan with 5 Speeds for Travel/Outdoor/Home/Office - White

【5-Speed ​​Turbo Wind】The upgraded JISULIFE handheld portable fan features five turbo wind speeds for powerful cooling. Simply press the power button to change the wind setting; a short press switches between low speed (3300 RPM) and high speed (6100 RPM), and a long press on any gear turns it off. 【16H Max Cooling Time】The JISULIFE portable fan comes with a 4000mAh rechargeable battery (twice the capacity of a regular handheld fan), which can provide 3 to 16 hours of use (depending on the speed setting). You can charge it via a standard outlet, power bank, computer, or any other device with a USB port, and it only takes 3 hours to fully recharge.