Ear Muffs - Peltor Pro-Tac III 32dB

Built-in level-dependent function allows the wearer to hear ambient sounds, such as conversations, machine sounds and warning signals

3.5 mm listen-only stereo input (limited to 82 dB) for connection to external devices (e.g. mobile phone, radio, two-way radio and iPod)

Voice-guided menu system avoids the need to remove the headset for setting changes

https://www.3m.com.au/3M/en_AU/p/d/v000253789/