3M HT52A-112 Peltor? CH-3 Listen Only Headset, Headband Style, 26 dB – Each

Protective solution for clear communication in noisy environments
Uses the speech frequency-optimized CH-3 speaker system for clear audio reception in noisy environments
FLX2 connection jack allows for easy and reliable connection to a wide assortment of handheld devices
Designed for lasting comfort during long wear times
Built tough to withstand harsh environmental elements
Headset features listen-only functionality