Sena Tech Talk: R2 & R2 EVO Smart Cycling Helmets - YouTube
R2 EVO Mesh Intercom™ Cycling Helmet – Area 13
Coming Soon: Sena R2 & R2 EVO Smart Helmets | Two new smart road cycling helmets are coming soon! The R2 and R2 EVO are aerodynamic helmets built with Sena technology to