1. Violent Turbofan 2. Brushless Dc Motor 3. 130,000 Rpm; Wind Speed 52 M/S 4.Can Reach 230w 5. Stepless Speed Regulator; 21700 Battery Cell Description: 1.Battery Capacity: 4000mAh x2 (7.4V) 2.Function: 200W 130,000 RPM Handheld Fan 3.Power Supply Voltage: 5V 4.Power Supply Current: 10mA 5. Processor: FPGA 6. Working Temperature Range: 5°C~40°C Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. Colour:Black Material:ABS Package Contents: 1x Violent Turbo Fan 1x Data Cable 1 Set x Air Outlet Kit 1x Instructions In Chinese And English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.