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Amazon.com: Sennheiser SDW 5066 (507024) - Double-Sided (Binaural) Wireless Dect Headset for Desk Phone Softphone/PC & Mobile Phone Connection Dual Microphone Ultra Noise Cancelling, Black : Electronics
Application Notes for EPOS Connect & IMPACT SDW 5000 Series DECT/USB Headsets with Avaya Workplace Client For Windows 3.14,
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