a.:Power plug,AC100-240V 50-60HZ 10A
b:ON/OFF button,Turn on/off if pressing 1second.Open Wifi hot spot if pressing 5seconds.
c1:Red LED,Wifi hot spot is opened if red light flashing quickly.Red light is always light when the device already connected WIFI.
c2:Green LED,when green is light that the outlet d1 is ok,no light the outlet d1 is off.
c3:Yellow LED,when yellow is light that the outlet d2 is on,no light the outlet d2 is off.
c4:Blue LED,when blue is light that be outlet d3 is on,no light the outlet d3 is off.