This AIM Motorsport SmartyCam External Microphone Cable / 3.5mm Jack Connection enables you to add an external microphone to your SmartyCam GP HD (Rev.2.2 ONLY) or SmartyCam 3 GP / Corsa camera systems. Available as either an external microphone or as a 3.5mm female jack connection so as to connect your own microphone.The microphone can be placed in any area you wish, inside or outside of your vehicle and in a position where the microphone won't just pick up wind noiseThe female 3.5mm jack connection option is ideal if you want to connect the SmartyCam to your intercom systemThe cables measure 1 metre in length, and plug directly into the recording unit 7 pin 712 Binder connection on the camera labeled ECU-Mic.Fits the following camera models: SmartyCam 3 Corsa, SmartyCam 3 GP, SmartyCam GP HD Rev 2.2