Based on the same drivers the PortaPro and KSC75 use, the Koss SportaPro is an inexpensive headphone that features sound quality and a no-questions-asked lifetime warranty that beats out almost all cheap and easily-available competition. While not as popular as its two more well established brethren, the SportaPro shares thier bassy sound signature, open style design (that doesn't isolate you from potential danger), and a pricetag that is very competitve.
- Frequency Response: 15-25,000 Hz
- Impedance: 60 ohms
- Sensitivity 103 dB SPL/1mW
- Cord: Straight, Dual Entry, 4ft