The Apostle
100+ Head-Fier
Sorry. Polys, meaning Plantronics.Not sure what you mean and not familiar with the "Polys" but I'm not aware of any ANC TWEs that don't let you turn off hearthrough, the outliers being the Bose QC, LTA+ and Tozo NC9 that do not let you turn off ANC which is a problem in high wind situations and when bike riding.