Sound enhancement, hearing protection, & 5.0 bluetooth at the same time Turn your sound enhancement up or down to your exact desired level, then enjoy clear hearing for any environment you want. then notice while you are hearing everything you want, the axil technology will automatically compress damaging loud sounds to give you the hearing protection you need- all at the same time, without interrupting your clear hearing. you can also enjoy 5.0 bluetooth for audio & hands-free communication. Smooth, clear hearing enhancement sound quality Autoblocker technology compresses loud sounds over 82 DB 27 DB SNR- hearing protection Reduces wind noise Sweat & water resistant Sound activated compression – 0.02 second reaction time