General Information Manufacturer: Koss Corporation Manufacturer Part Number: 194324 Manufacturer Website Address: http://www.koss.com Brand Name: Koss Product Model: CS200i Product Name: CS200i Headset Marketing Information: The all-new CS200i communication headset headphones are perfect for at the office, language learning programs, or taking internet conference calls. 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 electret 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 analog headphone and microphone audio. Packaged Quantity: 1 Product Type: Headset Technical Information Connectivity Technology: Wired Cable Length: 7.87 ft Sound Mode: Stereo Impedance: 32 Ohm Minimum Frequency Response: 20 Hz Maximum Frequency Response: 22 kHz Sound Pressure Level: 102 dB Features: Lightweight Hands-free Flexible Microphone Earpiece Earpiece Design: Over-the-head Over-the-ear Earpiece Type: Binaural Microphone Microphone Design: Boom Microphone Technology: Electret Noise Cancelling Interfaces/Ports Host Interface: Mini-phone (3.5mm) Physical Characteristics Color: Black Form Factor: Supra-aural Warranty Limited Warranty: Lifetime