Uses 64mm brushless motor with 1600g thrust. Powered by rechargeable lithium-ion battery, compatible with for Makita 18/21V batteries (not included). Ergonomic design, comfortable to hold. Push-type speed adjustment, can be used as needed. Motor:high-speed 64mm brushless motor Thrust:1600g Duration:15 minutes to 20 minutes, full power, continuous use. Current regulation:60A Power:Maximum 1100W Note: 1. Why does it get hot when used? Turbojet fans have high-energy, high-speed motors, which means that long-term and continuous use of this product may cause excessive heat to be generated. We strongly recommend shortening the use time to avoid overheating. 2. Batteries are not included in the delivery list, you need to prepare the batteries yourself 3. This product has an over-temperature protection function, which will automatically reduce the speed if the body overheats. 4. Peak thrust depends on the discharge capacity of the battery, while battery life depends on the capacity of the battery. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Type:for Makita 18-21V Battery Colour:Black Material:PETG carbon fiber Package Contents: 1 x Turbo jet fan (without battery) 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.