Features: 1. This product uses a large-size brushless motor with a diameter of 40mm, and the blades are made of CNC aluminum alloy, which is sturdy and 2. Compatible with 18-21V lithium batteries, lithium batteries need to be prepared by yourself, not included. 3. The maximum thrust can reach 600g 4. Comes with 2 nozzles for a range of uses 5. Can be used to dry cars, clean fallen leaves, clean electrical appliances, etc.<br><br>Parameters: 1. Motor: brushless motor, diameter 40mm 2. Thrust: 600g 3. Switch: push-type, supports stepless speed regulation Note: 1. The wind force depends on the discharge rate of the battery you use. The stronger the battery discharge capacity, the greater the wind force 2. Do not roll foreign objects into the fan 3. The recommended single use time is within 2 minutes. Long time cause battery/motor overheating Material: PETG carbon fiber+aluminum alloy colour: Black<br><br>Package Contents: 1 x fan host 1 x regular nozzle 1 x extended nozzle<br><br>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.