Koss SportaPro Stereo Headphones

The Koss Sporta Pro are the perfect headphones for an active listener who needs to move from the living room to boardroom to locker room without missing a beat. Combining the sound reproduction of the Koss Porta Pro with a unique design that allows over-the-head or behind-the-head wearing, the Sporta Pro won't interfere with hats or hairstyles - a prime portable headphone.With Mylar elements ensuring accurate sound reproduction and minimal mechanical distortion, Koss Sporta Pros are a lightweight headphones that also feature computer-optimized rare-earth magnet structures (neodymium, iron and boron), which deliver uncommon sound clarity no matter what volume you listen at - even with low-voltage DVD and MP3 players.The Koss SportaPro portable headphones offer portability, flexibility, and a headband designed to be worn either atop or behind the head. Equally well suited for use at work or on a jogging trail, the SportaPro's open, foam-covered ear cups allow for ambient environmental sounds to be heard, which can be helpful in a recreational environment. The SportaPro's weight is a mere 2.2 ounces, and the headphones boast a frequency response of 15 to 25,000 Hz, delivering (on paper, at least) quite a bit more bass than most home speakers can. Impedance is 60 ohms, with less than a 0.2 percent distortion and sensitivity of 103 dB SPL (with a 1 mW signal). The SportaPro stereophones are collapsible and come with a carrying case, as well as both 0.125-inch and 0.25-inch jacks. Koss covers the headphones with a lifetime warranty.