The Heil ProSet3 professional stereo headphones have been designed for a wide variety of applications including amateur radio, studio recording, commercial broadcast use, and casual listening. With a frequency response of 10 Hz to 22 kHz, they deliver exceptional articulation and clarity, with beautiful sonic accuracy in a closed back, lightweight headset The over-ear headphones weigh only 7 oz and feature padded ear cups so that they will be comfortable and non-fatiguing over long periods of time.

For ham radio operators and listeners, the exclusive Heil Phase Reversal switch allows the user to move the signal acoustically, which creates a spatial widening of the sound field that makes it easier to ‘see’ a signal inside a pileup while removing listener fatigue during prolonged use.

To accommodate different listening situations, the headphones come included with three detachable cables: a 5.9′ flexible straight cable with a 1/8″ headphone plug, a 5.9′ straight cable with an iPhone and iPod compatible 1/8″ plug, and a 9.8′ coiled cable with a 1/8″ headphone plug. The cables have twist lock terminating 1/8″ gold-plated connectors. A 1/4″ gold plated screw-on adapter comes included with the headphones.