Perfect for classroom education, work communication, or gaming. Large 40mm drivers deliver excellent sound, while the ambidextrous design allows for left or right side use, featuring a180-degree adjustable boom microphone. Both the headband and microphone arm are adjustable for a comfortable fit to your individual head size and mic position to mouth. Quick and easy volume adjustment from the in-line control located on the cord. The Direct Noise Canceling Microphone Technology (DNCT4) allows for reliable voice recognition so you will be clear and easy to understand. Certified for voice recognition systems. 7’ cord designed for PC use, using dual 3.5mm audio and mic plugs. Speech / voice recognition ready. 40mm drivers.