Altec Lansing PC interactive headsets offer superb sound and rugged reliability. Whether you use them for PC interactive gaming, Internet voice chats, or speech recognition, these comfortable headsets provide crystal-clear sound. You can even use them with your telephone (adapter required). With stereo and mono options, Altec Lansing offers the right headset for your needs. Best of all, they're comfortable and lightweight enough to wear every day.PRODUCT FEATURES:High Performance 40mm neodymium drivers deliver a wide frequency response and bass you can feel;Closed ear-cup headphone design improves clarity and minimizes ambient sounds;Noise-rejecting microphone helps minimize background noise;Handy in-line volume control regulates audio level;Microphone volume controller (High-Low-Mute) maximizes communication control.