Poly CS540A DECT 1880-1900 MHz Headset
The CS540 convertible DECT™ headset provides professional performance so you can get more done — even on the move. The noise-cancelling mic reduces background noise interruptions, ensuring great audio quality and easing listener fatigue.
Give everyone more freedom to move
Everyone in the office could use more flexibility. Let them roam confidently up to 400 ft from the headset base. They’ll be able to collaborate simply since teams can conference up to four headsets on a single base.
There’s more than one way to make a call — switch up styles to find your groove and introduce your ears to something new. The CS540 convertible design comes with three wearing options: over-the-ear, over-the-head, behind-the-head[1].
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Up to 7 hours (talk time)
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Compatible with desk phones via RJ-11 cable or DECT™
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Compatible Operating Systems
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Windows 11; Windows 10; macOS
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Wireless; DECT™; Wired: RJ-11
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Manufacturer product number
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Poly standard one-year limited warranty
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Nominal sound pressure level
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Package dimensions (W x D x H)
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20 Hz to 6.8 kHz (narrowband or wideband)
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Office base; AC power adapter; Headband; Telephone interface cable (TIC); Headset with pre-installed battery, eartip and earloop; Kit with eartips and earloops
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[1] Protects against Acoustic Shock by limiting sounds to below 118 dBA.
[1] Neckband sold separately.
[2] HL10 Handset Lifter sold separately.
[3] Electronic Hook Switch Cable (EHC) sold separately.
[4] DECT is a trademark of ETSI.