The AG-EC4G extension control unit provides remote control of the base station and can also be attached directly the camera for control use. It comes standard with a 32-foot (10M) remote control cable, but the unit can operate with longer cables. Control functions include gain up/down, output camera/bar selection (linked to auto knee), white balance A/B/Preset selection, AWB/ABB execution, shutter SS/Fix/Off selection and speed setting, iris auto/manual selection and adjustment, master pedestal, painting, camera menu operation, recorder operation (Rec/Play/FF/Rew/Rec check) and three programmable user buttons. Users can save camera settings onto SD cards for later use or to load into another camera.