The Philips IT Headphones with Mic are designed to give you optimum audio quality and comfort. These headphones have a rotary microphone boom that optimizes the voice pick up. The free moving boom on the headset lets you optimally position the microphone so that it gives clear voice pick up. You can easily personalize the headset to suit your comfort levels. The in-line voice control options let you make adjustments to the voice levels. The Philips IT headphones with mic are light in weight, making it perfect for prolonged use.