Honeywell 1030334-H5 Howard Leight? Sync? Electo-H Helmet Earmuffs, Cap Mount Style, 30 dB – Each

Combines the FM Radio earmuff with advanced sound amplification technology
Allows wearers to hear important communications at a safely amplified level, while listening to the radio
Amplifies incoming sounds to 82dB, then acts as a passive earmuff for sounds above 85dB
Requires 2AA batteries