This heavy-duty, 8-pin, lower-section hook-up cord is to be used with all J&M® Elite Series headsets HS-ECD269, HS-ECD271, HS-ECD374, HS-ECD477, HS-CPS477, HS-ICD584,HS-ECD584 and the J&M modular headset components, for connection to 1980 and later Honda and J&M 5-pin audio systems.