Plantronics 201250-01 Gamecom 308 40mm Stereo Speaker 40mm stereo speakers deliver rich, resonant stereo with maximum bass response. Lightweight and flexible, the headset is comfortable for hours. Pillow-soft, swivel-mounted ear cushions focus stereo sound for maximum enjoyment. Quick-adjust microphone telescopes and rotates for precise placement. Noise-canceling microphone reduces background noise so you can easily be heard and convenient in-line controls let you adjust volume or mute the microphone with just a touch.