Features: Adopting 50mm high-speed brushless motor (dualpole magnet process) Under full charge, the power can reach 500W Thrust 900g-1000g, extremely strong wind force Built in 6pcs 4000mAh 21700 rechargeable lithium batteries Using DC5525 charging port, supporting high-power charging Simultaneously supporting stepless speed regulation and one click brute force function Specifications: Motor size: approx 50mm/1.97in Brushless: Yes Power: 500W Thrust: 900~1000g Battery: Built in 6pcs 21700 batteries (4000mA) Charging interface: DC5525, Supports up to 5A high current charging Range: About 20minutes Product size: approximately 25x16x10cm Product weight: 970g Package Includes: 1PC 50mm Jet Fan note: Attention: High power product may generate slight heat, and it is recommended not to use continuously for more than 2 minutes at full power Prevent getting caught in foreign objects during use, otherwise bear the consequences Scope of use: This turbos fan has strong wind and can be used for car drying, dust blowing, yard cleaning, and more. The maximums thrust can reach over 900G