The all-new Koss CS200i communication headset headphones full range of sound brings conversations to life. Featuring the unique Koss D-Profile earcup design, the CS200i fits the shape of the ear for the perfect fit. The flexible, hands-free noise-cancelling boom microphone with detailed sensitivity and reduced sound distortion is perfect for multi-taskers. The Koss CS200i communication headset headphones connect to devices through a single 3.5mm (TRRS) plug for analogue headphone and microphone audio.