USB Communication Headset CS100 with Noise Reduction Microphone -
Boasts a full range of sound that brings every conversation to lifeHands-free communicationQuick and easy connection to PCIdeal for PC voice applications, interactive gaming and speech recognitionCan be used with an external power source if sound card does not have built-in bias supplyOxygen-free copper voice coilsAdjustable headband for great fitFoam ear cushions for open, hear-through soundStraight, single-entry 8' cordFrequency response: 30 16,000Hz Limited Lifetime N/A.