3. Built in 21700 lithium battery, with long battery life and up to 2 hours of low-frequency use. 2. Strong dust removal, handling a series of debris such as accumulated dust, sand, hair, etc. 4. Infinite speed regulation, easy to operate with one hand, two in one switch speed regulation, increasing air volume from small to large, better protecting the motor. Features: 1.200000 RPM turbofan, brushless motor, powerful. 5.[High-Speed Airflow]This versatile cleaning tool is perfect for home, car, and office use. The jet fans optimal airflow and performance. Its portable design allows you to take it anywhere, whether you're on a camping trip or cleaning.