Parameter 1: Input 18-22V tool lithium battery (14.4V is ), current 2-15A, 4 levels in total, and hold to turn on ~ click to shift ~ 4-speed wind cycle is 20W, 60W, 100W , 160W respectively. Parameter 2: When fully , the distance between the air outlet and the speedometer is 10cm. The wind speed in the four gears is: 8-17-25-30 m/s. The distance between the air outlet and the speedometer is 20cm . The wind speed in the four gears is: 5-10. -15-18.5 meters/second, the distance between the air outlet and the speedometer is 30cm, the four-speed wind speeds are: 4-8-12-14 meters /second. The maximum wind speed is almost converted to 0.2KG. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:As Shown Material:plastic C:For Package Contents: 1 x Fan 2 x Air outlet 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.