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  • Connects to
    • PC or desk phone with Poly audio processors
    • Telephone-intensive users, including formal customer care centers, help desks, telesales, and customer service organizations
    • SoundGuard technology: acoustic limiting for protection against sounds above 118 dBA
    • Wideband audio (up to 6,800 Hz), noise-canceling microphone
    • HW710 Over-the-head, monaural, noise-canceling 53g
    • HW720 Over-the-head, binaural, noise-canceling 78g