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Poly CS540A DECT 1920-1930 MHz Headset TAA

3% back in HP Rewards
Product # 7W073AA#ABA
The CS540 convertible DECT™ headset provides professional performance so you can get more done — even on the move. The noise-canceling 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.

The choice is yours

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].

It’s just easy

Simplify desk phone management with headset audio controls and adding either the HL10 Handset Lifter or Electronic Hook Switch Cable (EHC) for remote call capabilities.[2,3]

Extended range and talk time

The adaptive power system optimizes for range and talk time by automatically downshifting to low power when the headset is close to the base — saving battery life and maintaining maximum density.

SoundGuard technology

SoundGuard acoustic limiting technology protects against Acoustic Shock by limiting sounds to below 118dBA ensuring listening comfort and protection against audio spikes.

Superior audio quality

Your choice of narrowband audio to extend talk time or advanced wideband audio for high — definition voice quality. Enhanced Digital Signal Processing (DSP) provides more natural sound, delivering clear audio the way it’s intended to be heard.

Maximum protection

The CS540 headset includes DECT™ technology that provides better audio quality and eliminates interference from Wi-Fi networks while calls stay safe and secure.[4]

Technical details

Battery life

Up to 7 hours (talk time)

Speaker bandwidth

20 Hz to 6.8 kHz (narrowband or wideband)

Wireless Range

Up to 120 m

Connection Type


Acoustic Protection Technology





0.04 lb


Poly standard one-year limited warranty

What's in the box

Headset with pre-installed battery, eartip and earloop; Office base; Headband; AC power adapter; Telephone interface cable (TIC); Kit with eartips and earloops

Manufacturer Product Number



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Is it Windows 11 Compatible?

Asked by: Sami55
Thank you for your question, the Poly CS540A DECT 1920-1930 MHz Headset TAA will work with Windows 11.
Answered by: HP Team Daniel
Date published: 2024-04-18


Asked by: MACMAC
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Return and exchange information
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.