- 3.5 mm jack
The Koss CS200 communication headset headphones are perfect for at the office, language learning programs, or taking Internet conference calls. The Koss CS200 communication headset headphones full range of sound brings conversations to life. Featuring a unique Koss earcup design, the CS200 fits the shape of the ear for the perfect fit. The flexible, hands-free boom microphone with detailed sensitivity and reduced sound distortion is perfect for multitaskers.