Powerful Handheld FanThis portable fan features a built-in 4200RPM motor, providing enough power to drive the spiral blades to run at high speed. The spiral blades can maximize airflow intensity and blow out strong high-pressure cold air for effective cooling. Super Long Battery Life & Backup PowerThis hand held fan has a built-in 5200mAh rechargeable power supply that can run for up to 30 hours (low wind speed), lasting 30% longer than most handheld fans on the market. The USB output port also makes it a power bank (5200mAh) in an emergency to charge phones, earphones, and other devices. Perfect for long-term use during travel, work, and outdoor activities. Ultra-long Service LifeThis handheld fan uses high-quality batteries, which can still maintain more than 90% of their capacity after 5 years. This ensures long-lasting performance and value for your investment. Powerful 3-Speed Adjustable FanThe mini handheld fan has three adjustable wind speeds. Press the button to switch between different wind speeds and hold for 3 seconds to turn it off directly. You can adjust the natural wind, cool wind, and strong wind according to your needs, keeping you cool in various scenarios. 4 Power IndicatorsFour power indicators display the fan's remaining power. The first light shows 1%-25% charge, the second indicator shows 26%-50% charge, and the third indicator light shows 51%-75% power. When all four lights are on, the fan is fully charged. Portable Handheld FanThis handheld fan is easy to carry. Equipped with a lanyard and a rubber base, the hand-held small fan can be held in the hand, or it can stand firmly on the table as a desk fan. Great for summer at home, office, travel, camping and more. 36 Months Warranty and What You GetIn addition to the handheld fan, you will receive a lanyard, micro USB cable, and user manual. Plus, enjoy free lifetime technical support and a 36-month manufacturer's warranty (registration required).