Koss - PortaPro Portable Headphones - Black

Top of the head design with foam ear cushions

To provide open, hear-through sound.

Neodymium magnet

For sound reinforcement.

Foldable headband design

And leatherette case allow for easy portability.

4' cloth-covered cord

For extended use.

15Hz - 25kHz frequency response

For faithful sound reproduction.

101dB SPL/1 mW sensitivity

For powerful sound.

60 ohms impedance

To efficiently conduct power.

Koss Portapro Stereo Headphones

Leatherette case

Owner's manual