These headphones are the “work-horses” of the industry. They have been around for a long time.
They feature a Stereo/Mono selector switch so that they can be used on most any detector. If a detector is wired monaural the sound will only come out of one ear unless the selector is switched to Mono. They feature dual volume controls, one on each earcup and a comfortable, adjustable, padded head band with soft padded ear cups as well.
Freq Range 20 ~ 20,000 Hz
Max Power Input 100 mW
Sensitivity 102 dB at 1 mW
Length of Cord 10.5 Ft
Weight 320 Grams (11.25 ounces)