The HP Poly Blackwire 3200 headset delivers an excellent audio experience, designed for enterprise use. Its monaural design lets you keep one ear open for awareness of your surroundings. Hi-fi stereo sound options provide rich audio, while dynamic EQ enhances call clarity and automatically adjusts audio settings for optimal listening. | HP Poly Blackwire 3200 Over-Ear Noise Cancelling Headset - Black