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Flexible noise canceling microphone
manage calls from up to 350 feet from the charging base
Wideband audio processing
Convertible Headset replacement for the CS540 Wireless Headset
HP Poly APC-43 EHS Cable for CS Wireless on Cisco Phones 85Q55AA - TAA Military headsets Flexible noise canceling microphoneElectronic Hook Switch Cable for remote desk phone call control (answer end). This cable eliminates the need for a HL10 Handset Lifter. This cable works with Cisco desk phones and may work with additional manufacturers. Plantronics has several EHS adapters, each being unique to a specific telephone and wireless product. We strongly suggest confirming compatibility with us before purchasing this item. This replaced the APC 42 EHS cable