1:Adjustable stroke from 2.5mm to 4.5mm, no limits between it. You can adjsut 2.5,2.6,2.7... etc.

2:Timing function,will begin timing when open the ep10, retain Timing data even after you change the battery; Timing reset by holding both the "+" and "-" buttons for 3s;

3:18500 Lithium-ion Battery replaceable ,upgrade circuit protect measures can protect the circuit board of UNi-B machine even install battery wrongly;

4:High-definition color screen show voltage, hertz,timing and power display.

5:When the battery is running low, Lightning icon on screen will flash to remind you that the battery needs to be charged.

6:With built-in rebound function, it can generate corresponding rebound according to different skin conditions to reduce skin damage.

7:Anti-slip grip

8:High-speed motor, true speed 10500rpm: more powerful, easy to enter the skin with a smaller volt.

9:Low battery reminder

10:Upgraded 10c power battery: longer working time

11:The screen is upgraded to color, and the color corresponds to the battery