koss portapro headphones with case
koss introduced the portapro headphone back in 1984 and they ve been a hit ever since . to this day they still deliver excellent sound quality particularly for phones in this price range . caption . click here for a larger image phones are ollapsible for maximum portability . get just the right amount of pressure . the koss portapro collapsible stereophone combines high-quality sound reproduction with a unique design for the ultimate in convenience and comfort . these over-the-head headphones have a dynamic element design for deep bass performance and a frequency response of 15 to 25 000 hz to ensure the music comes through clear and bright . also designed for comfort these headphones have two adjustable temporal-comfort zone pads to shift the pressure and perfectly balance the ear plates on your ear . the open-earphone ear plates are multipivoting and together with the adjustable headband allow for maximum comfort . the portapros are collapsible and come with a carrying case so it s still easy to take them with you even when you re not wearing them . a 0.25-inch adapter is included to ensure they will fit with any system . koss offers a lifetime warranty on its portapro stereophones . specs frequency response 15-25 000 hz impedance 60 ohms sensitivity 101 db spl cord straight dual entry 4 feet what s in the box koss porta pro headphones