Futaba SWH12 Mini Switch Harness with 2 Pin Conn-J INCLUDES: One Switch Harness w/One J and One P (BEC) Connector; SPECS: Distance between mounting holes Ctr-Ctr: 19mm Width: 25mm Thickness: 10.7mm This is the Switch Harness for Futaba Radios with a J Style Connector; This Switch Harness Connects the Battery to the Receiver by way of an ON/OFF Switch This is the Switch Harness for Futaba Radios with a J Style Connector; This Switch Harness Connects the Battery to the Receiver by way of an ON/OFF Switch