4. Infinite speed control: This product supports speed adjustment, allowing users to choose the desired wind intensity according to preference. 2. LONG BATTERY LIFE - Equipped with two high capacity 21700 type batteries (each with a capacity of 4000mAh), this product offers a durable and long lasting battery. The battery is visible at the moment, allowing easy tracking. 1. HIGH QUALITY BEARINGS AND BLADES - This product features top-of-the-line high-speed bearings and 13 stainless steel blades, all CNC machined. They generate pressure and speed of over 52 meters per second, ensuring powerful airflow. 3. CONVENIENT CHARGING - With a TYPE-C charging interface, this product supports 15W PD/QC fast charging, which ensures fast and efficient charging times. 5. POWERFUL BRUSHLESS MOTOR The built-in brushless motor is and can reach a maximum speed of 140,000 RPM. Ensures efficient and effective air flow. In addition, the product is equipped with a 30A current regulator for stability and control., Weight: 0.89507678372 Pounds, Manufacturer: Faeymth