Product details:

Works with all Mighty Mule DC gate operators and narrow band transmitters (gray style). The AQ201-NB comes standard with all DC swing gate operators. The AQ201-NB comes standard with all DC slide gate operators. Measures 2 inchH x 2-3/8 inchW x 15/16 inchD, with a 10 inch antenna and with 10' of Cable.