so you can talk to your wife or buddy while biking. Or if by yourself you can listen to your audiobook while still hearing traffic. IT works GREAT! It makes bike rides really fun for date nights.
AmazonAmazon.com : Sena R1 / R1 EVO Smart Communications Cycling Helmet : Sports & Outdoors
https://www.amazon.com/dp/B0CHNBK8CQ/ref=nosim?tag=cougarboard07-20[https://www.amazon.com/Sena-Smart-Cycling-Helmet-Matte/dp/B09HZ7JSX3/ref=asc_df_B09HZ7JSX3/?tag=hyprod-20&linkCode=df0&hvadid=693769151405&hvpos=&hvnetw=g&hvrand=115681305119769551&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1026980&hvtargid=pla-1618161218314&mcid=1c32e1aa82d63de39f889387e9743907&th=1&psc=1]