Heddolf Remote Control, with Work with GTO or Mighty Mule Gate Openers Two button entry transmitter is made to work with a GTO/Mighty Mule gate opener The transmitter has adjustable code setting for security The RB709 receiver garage door opener adapter is needed in order for the two button transmitter Easy to program, and works with any Mighty Mule or GTO automatic gate opener Visor clip and 9 volt battery included