Since creating the world’s first SP3 stereophone in 1958, Koss has set the standard for headphones that replicate the excitement of a live performance—and bring listeners closer to the music they love. The Pro3AA builds on that tradition with a lightweight, comfortable, supremely portable design. Great for use in the studio or any work environment where minimal sound leakage is important, these closed-back cans feature padded leatherette cushions that form a tight seal around the ears to reduce ambient noise. The construction is rugged, the headband is adjustable, and the ear cups fold up for easy storage.

The titanium-coated element minimizes mechanical distortion to ensure accurate sound reproduction, while voice coils improve signal transmission and conduction for cleaner, clearer sound. For flexibility of movement, the heavy-duty straight cable measure 8 feet long and ends in a gold-plated 3.5-millimeter plug. A 6.3-millimeter adapter is included.