The Xtream™ H4 Stereo Headset with Microphone are designed to prevent interruption in an open environment such as a call center, conference room, customer/tech support station, and clerk's desk. The dual 3.5mm connectors work directly with your computer through the microphone and headphone input ports. The built-in omnidirectional microphone picks up sound reliably. The flexible shaft allows you to adjust the microphone's position for optimal performance.