1,3 work modes:short time mode,Long time mode ,Elder time mode.
2,Immite oil three handpiece at the same time 
3.Has Socket of the Stright Handpiece and the Contra Angle
4.Show the amount of oil
5.Working air pressure:0.5MPA
6.Working VOltage :AC220V
7.Press to blow the Air key after cleaning the oil,air can blow cleanly the surplus oil in the handpiece