This used Mighty Mule MM gate opener is perfect for opening and closing garage doors or gate operators. With a maximum door weight of 1000 lbs and a maximum gate size of 30 ft, this electric opener is compatible with Linear brand products and has a dip switch of 9 switches. The remote control has a frequency of 318Mhz and works with a voltage of 12V.This product is suitable for both commercial and residential applications, and it is made in the United States. The Mighty Mule MM gate opener is a reliable and efficient choice for opening and closing gates and garage doors.