This USB Headset Noise-Cancelling Mic CS100-USB is designed by Koss and it can be used with an external power source if sound card does not have built-in bias supply. It has a 30-16,000 Hz frequency response and is designed with oxygen-free copper voice coils.
The Noise cancelling microphone provides clear communication and the comfortable foam ear cushions make them comfortable for extended and repeated use. It's cord is a straight, single-entry that is 8 foot long.
Ideal for Classrooms, Libraries and School Computer Labs Covered by the Koss Limited Lifetime Warranty.
Single, USB plug for quick headset connection
Headset with electret, noise reduction microphone for hands-free communication from your PC
Ideal for PC voice applications, interactive gaming and speech recognition
Dynamic element for extended frequency response
Foam ear cushions for open, hear-through sound
Adjustable headband for a great fit
Frequency Response: 30-16,000 Hz (headset); 100-16,000 Hz (microphone)
Impedance: 32 Ohms (headset); Same as load resistance (microphone)
Sensitivity: 91 dB SPL (headset); -56dB +/- 3dB per 1V/Âµbar@1KHz (microphone); (-36dB +/- 3dB, V/Pa)