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Plantronics S11 Telephone Headset System offers hands-free convenience and comfort, and includes an over-the-head headset for stability with a noise-canceling microphone for superior sound clarity; universal amplifier base, headset stand and AC adapter.
• Connects to most single or multi-line corded phones
• Listen and speak volume and mute controls
• Noise-canceling microphone reduces background noise for crystal clear calls
• Universal amplifier has separate Speak and Listen volume controls
