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 600g4. Comes with 2 nozzles for a range of uses5. Can be used to dry cars, clean fallen leaves, clean electrical appliances, etc.Parameters:1. Motor: brushless motor, diameter 40mm2. Thrust: 600g3. Switch: push-type, supports stepless speed regulationNote:1. The wind force depends on the discharge rate of the battery you use. The stronger the battery discharge capacity, the greater the wind force2. Do not roll foreign objects into the fan3. The recommended single use time is within 2 minutes. Long time will cause battery/motor overheatingMaterial: PETG carbon fiber+aluminum alloycolour: BlackPackage Contents:1 x fan host1 x regular nozzle1 x extended nozzleOnly 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.