High capacity batteries. One battery can working 4-5 hours very easy replace wireless parts.
Simple Operating System：
Short press to ON, press "+" and "-"to change volt,Every time you press the button，0.1V voltage adjust.
Compatible Tattoo Battery：
The DISCOVER DEVICE 1109 wireless power supply compatible with all standard RCA rotary tattoo machines , Package include：1109-PB Battery and USB charging cable.
Long press power button to power ON/OFF without JumpStart voltage feature. Quickly double press power button to power ON or OFF with JumpStart feature. Turn on the machine will display the previously adjusted volt. Press power button for Start/Pause the machine. Start to timing when is power on.Reset the timer when is power off. Pause the timer by pressing the power button. 1~100% capacity display. If there is no activity for 5 minutes, the unit will automatically power off.
Short circuit code display E1 Over current code display E2 Please reboot for activate.