Hearing enhancement, hearing protection, & 5.0 Bluetooth at the same time™ Turn your hearing 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 shut out 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 5.0 Bluetooth 40 dB gain/amplification Auto blocker technology shuts off all sounds over 85 dB 27 dB NRR- hearing protection Reduces wind noise Sweat & water-resistant Sound activated compression – 0.02 second reaction time