Maximum thrust: 700-800g Motor diameter: 50mm Maximum power: 600W Power switch: key type Speed regulation: push-type stepless speed regulation<br><br>Maximum charging power: 22W Charging interface: type-c Usage time: 10 (highest gear)-180min (lowest gear) Battery: 4000mAhx4 Charging time:Using a charger that supports 15-18W fast charging: 4-5h Using a 10W charger: 8h Three-light indicator: The green light indicates that fast charging has been activated; The red light indicates that it is charging; The blue light is fully charged. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black&Red Material:PETG carbon fiber<br><br>Package Contents: 1 x 50E fan Kit<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.