It can work continuously for 4 hours in a fully charged cordless model. Wireless model and wired model can be chosen.
Adjustable needle
The needles can be adjusted to different lengths as needed. 0.25-2.5mm. Screw connection makes the needle more stable.
5 different speed levels
Different speeds, suitable for different situations. Press the buttons to adjust the speed, 1-5 levels. The digital display shows the speed more visually.
Replacing different needles
Use different needles for different scenarios. 2pcs*12 needles are included.