Look at isotunes. I have had a pair of the earbuds that has a wire from ear to ear but Bluetooths to your phone and love 'em! Use them for every loud motor I'm arround. They come with 3-4 sizes of earplugs to get the proper fit. They are a noise reduction earplug first and Bluetooth phone...
I was involved with adding a transfer switch at a dairy operation. After the switch was installed the farmer brought over the PTO driven generator on a pallet carried by the 3 point hitch of a 60+ horse power tractor. The farmer connected power lines from the generator to the switch. He ramped...