Plantronics – CS540 Wireless DECT Headset (Poly) – Single Ear (Mono) Convertible (3 Wearing Styles) – Connects to Desk Phone – Noise Canceling Microphone
Original price was: $135.79.$126.99Current price is: $126.99.





Price: $135.79 - $126.99
(as of Nov 03, 2025 17:49:31 UTC – Details)
Product description

Wireless Headset – Poly CS540, Connect to desk phones
Ideal Headset for office and desk-centric workers across the enterprise looking for a simple-to-set-up, simple-to-use wireless headset for managing desk phone calls.
Product Information

Ideal For
Office and desk-centric workers using desk phones.

Audio Performance
Keep background noise out of your call with a noise-canceling microphone.

Talk Time & Roaming Range
Work Better, Hands Free, with a roaming range of up to 120 m/400 ft. Talk all day with up to 7 hours of talk time per charge.

Wearing Style
Monoaural light weight convertible (which can be worn either over-the-ear, over-the-head or behind-the-head option (pictured) sold separately.

Work From the Office
Easily use at work while on video calls and with the freedom to move about wirelessly.

Poly Innovation
Poly creates premium audio and video products so you can have your best meeting — anywhere, anytime, every time. Our headsets, video and audio-conferencing products, desk phones, analytics software and services are beautifully designed and engineered to connect people with incredible clarity. They’re pro-grade, easy to use and work seamlessly with all the best video and audio conferencing services. With Poly (Plantronics, Inc. – formerly Plantronics and Polycom), you’ll do more than just show up, you’ll stand out.
Connects To: Desk phones via included cable.
Ideal For: Office and desk-centric workers using desk phones
Audio Performance: Keep background noise out of your call with a noise-canceling microphone.
Talk Time & Roaming Range: Work Better, Hands Free, with a roaming range of up to 120 m/400 ft. Talk all day with up to 7 hours of talk time per charge.
Global Warranty & Wearing Style: 2 years; monoaural light weight convertible (which can be worn either over-the-ear, over-the-head or behind-the-head).
Customers say
Customers find the headset works well as a replacement and appreciate its comfort and easy plug-and-play setup. The sound quality receives mixed feedback, with some saying it’s good while others find it terrible. The battery life is also mixed, with several customers reporting it doesn’t last long enough. Compatibility is a concern as some customers report it doesn’t work with their phones.
13 reviews for Plantronics – CS540 Wireless DECT Headset (Poly) – Single Ear (Mono) Convertible (3 Wearing Styles) – Connects to Desk Phone – Noise Canceling Microphone
Add a review
Original price was: $135.79.$126.99Current price is: $126.99.
Stephanie –
Good purchase
Wish the battery lasted a little longer, but it lasts close to the entire 8 hour shift and it is on my head and in talk mode the entire time.We purchased three different brands of headsets, two of which are wireless, this one was the winner.
PA resident –
U g ffnt
Just what I ordered.
Amanda – CAS –
A+
I am very happy with this wireless product. I was unable to use the single piece that fits over the ear but like the other options that it came with. It’s a nice fit, works very well, doesn’t slip off, good sound quality and easy hook up. Charging dock is just as nice. I didn’t need to purchase any other cables or products for hook up and use. Purchasing a second one for another staff member.
Intermountain Agency –
Garbage
The absolute worst. Disconnects CONSTANTLY! Don’t buy.
Bonn –
Great product
Great product but not compatible with yealink t29g. Have to get an ehs adapter..
Simon DaCosta –
Compatibility Switch gone bad.
For no reason at all, the switch for changing channels has stopped working. I’ve tried following every tutorial out there to fix this but no luck.
GMCRiver –
READ DETAILS, DON’T DEPEND ON PICTURE
So far, it’s a good product. Hubby’s been using these for years. But, don’t go just by the picture, as it shows it with a handset lifter, which is NOT included with this particular product. We didn’t read all of the details, so thought it came with lifter. But, it works with the one he already has.
Heather –
Great purchase
This is excellent. The range is great! Sound is great! Battery life is great!! Wears comfortably. Sturdy item and easy to use.
MARYSE OUELLET –
C’est parfait.
Jonathan N. –
Buen producto gracias
Lebel Anie –
Je l’utilise à mon travail et il est de bonne qualité.
Linda –
It was easy to hook up to my phone at work and good quality of sound.
Kelly –
If your company have a policy to not use WiFi devices, then you will need to buy the cable to adapt this to your computer and phone connection. Which is 20 dollars more.Also, it comes with the headphone or earphone.Once I got the cable it was easier to connect the item and start using it in less than 10 minutes.I love to use these because It doesn’t hurt my ears while wearing my prescription glasses like regular big headphones.Poly (Plantronics + Polycom) Plantronics – Electronic Hook Switch APU-76 (Poly) – Cable for DECT and 900 MHz Headset – One Touch Call Control, Black (211076-01)