"By J&M®. This performance series helmet headset has been designed to be installed into most full-face style helmets (not flip-up style). It features the AeroMike® III miniature chin-bar microphone cartridge, (tuned for use with all factory installed motorcycle audio systems), two wide-fidelity helmet speakers in stereo, universal clamp-on mounting system and the upper section (only) of the P-series 8-pin right-angle hook-up cord. Has superior ambient noise canceling and wind blocking ability of the latest version of AeroMike III microphone along with the superior audio performance offered by wide-fidelity helmet speakers. (proper acoustical installation is required). This headset can be connected to any factory installed motorcycle audio system, now and in the foreseeable future, just by interchanging the lower-section hook-up cord. Single."