Now you can have the superb Gray Ghost sound and still hear what's around you. This special headphone lets you hear your detector's signals through one earcup while your other ear is left uncovered to hear things such as dangerous reptiles and snakes. You still have a volume control and a compatibility switch to enable the headphone to work with various detectors. Our new Rattler headphone has been custom designed specifically for the gold nugget hunter. This headphone is engineered rugged, tough, and made to stand up to outdoor use and have the signal power to hear the smallest nuggets!