Parameter 1: Input 18-22V tool lithium battery (14.4V is ), current 2-15A, 4 levels in total, press 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 will not affect the use. Colour:As Shown Material:plastic A: 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.