Universal fit with almost any helmet that has an audio-ready liner</br>Oversized?? two-button interface controls volume?? track?? play/pause?? and telephone calls</br>40 mm drivers for outstanding sound and ear-crushing volume</br>No battery means no charging and no worrying about going silent</br>Sweat-resistant and designed for use in extreme cold (-20 Degree C/-4 Degree F)</br></br>Product Description</br></br><div class="sparency-container aplus-content-container"> <div class="transparency-sub-heading"> <p style="text-align:justify">These are the Chips?? the universal wireless helmet audio system by Outdoor Tech. Connect