Amazon.com: Clearcom Single Muff Intercom Headset w. Female XLR Four Pin Connector Headphone : Electronics
Aftermarket Kenwood 2 Pin Behind the Head, Dual Muff Noise Reduction with PTT Microphone headset is perfect for those noisy environments. Great for manufacturing and warehouse use.
Pro Intercom DMH320 Double Muff Headset | ProAdv.com
Amron Remote Wireless Headset Single Ear Muff 190-0650-01