Patented Turbocharged Airflow: Handheld Turbo Fan has 2 vortex tech patents: Air Turbo and Air Jet. The airflow is accelerated and compressed by the air duct turbine, the wind is stronger, and the wind feeling is closer to nature 5 Gear Turbo Wind: Portable Fan has 5 gear turbo wind for potent cooling. You just press the power button to change wind setting, short press to cycle switch low-speed (3300r/m) to high-speed (6100r/m), long-press at any gear to turn off 16H Max Cooling Time: Hand Held Fan comes with a 4000mAh rechargeable battery(twice larger than a normal hand fan), provides 3-16 hrs duration (depending on different speeds). You can charge through a regular outlet, power bank or any other device with a USB port, just 3 hrs to have a full recharge Powerful & Energy-efficient: Personal Handheld Fan features a high-performance motor and optimized air duct to improve wind power while minimizing noise. Compared to other hand fans, it has a faster speed (6100 r/min) and stronger wind (4.8 m/s) Handheld/Desktop Fan: Mini Handheld Fan comes with a lanyard and an anti-slip mat at the bottom, you can hang it around your hands as a personal fan when outdoors, and used it as a small desk fan on a flat table. Suitable as a gift for women