• FREE Same-Day Shipping when you order by 2:30pm PST
  • 60-Day Money-Back Guarantee
  • FREE Lifetime Product Support
  • Guaranteed Compatibility
  • Up to 350 ft. range
  • Answer and end calls when you're away from your desk with the included HL10 handset lifter
  • Up to 7 hours of continuous talk time
  • Customizable fit allows you to wear the headset over-the-head or in-the-ear. Both styles offer an adjustable fit for ultimate comfort
  • Hands-Free Mobility: Multitask while talking on the phone.
  • Noise-canceling microphone with mute button
  • 64-Bit digitally encrypted signal. Nobody can listen in on your calls
  • Clearer calls, and less interference from 1.9GHz DECT
When it comes to comfort, look no further than the Plantronics CS540 Professional Bundle. The CS540 professional bundle pairs the great comfort of a convertible headset, with the freedom of the HL10 handset lifter, allowing for customization and up to 350 feet of mobility in one sleek package.

This convertible headset can be worn on-the-ear or over-the-head, offering an amazing fit for the whole office. In addition, this headset offers great audio for both you and your caller with a noise-canceling microphone and DECT 6.0 technology - eliminating interference from Wi-Fi networks. And, with up to 7 hours of talk time, you'll never have to worry about charging your headset during long calls.
Manufacturer Plantronics
Catalog Number 1991
Type Wireless
Wearing Style Convertible
Max Range / Cord Length 350 ft.
Connector Type (view connectors) RJ9
Weight 0.67 oz.
Lines: (telephone products only) Not Applicable
Compatibility Works with your existing single- or multi-line corded phone
Microphone Noise-canceling
Earpiece Leatherette
Color Black
Special Technologies 1.9 GHz, DECT 6.0
Warranty 1 Year Replacement
Battery Life 7-hour talk time
Reversible Yes
Handset Lifter Compatible Yes
Busy Light Compatible
Quick Disconnect Not Applicable
DC Adapter Compatible Yes
Digital Encryption Yes
What's in the box? Headset, 3 Earloops (S,M,L), 2 Earbuds (S,L), Headband, Leatherette Ear Cushion, Charging Base, AC/DC Adapter, Connector Cord, Quick Start Guide, HL10 Lifter, Ring Detector Kit

Average Customer rating for this item: (10 Reviews)

Do you use this product? Write a Review!
Sort by
Good Service
Product arrive promptly and as promised.
customer image
Goshen, IN
Love it!
Headset isn't too bulky or heavy, it's very discrete & comfortable. Convenient to answer the phone when your away from your desk, with a quiet beep in your ear when the phone is ringing. Answer button is easy to press.
customer image Aja Cook
Torrance, CA
Love it, good quality, good clarity, overall wonderful.
customer image Marie Newby
Mukwonago, WI
customer image Melody Walls
Nicklin Property Management
Henderson, NV
A great company to work with
I ordered a unit that did not work as it was thought it should and when I called for some assistance, was told the unit I ordered was not comparable with my phone system!! Shocked, but these people sent me a return mail label, and a replacement model that worked like I thought the first unit would. Happiness! A great place to do business, and a very helpful crew....thank you.
customer image Frank Vault
Moore Financial Strategies
Tucson, AZ
customer image Doug McCuen
Specialty Delivery & Logistics, Inc
Charlotte, NC
customer image Jayne McRae
Valley Eye Specialists PLC
Mesa, AZ
very pleased with it
excellent customer service (Jeff)
customer image Nanci Carney
VSPONe Dallas
Lewisville, TX
The staff find them extremely comfortable and like them a lot
customer image David Blue
Blue Ink Accounting
Edmonton, AB
CS540 review
I do not like this set at all, very cheap and doesn't feel comfortable nor does it compare to the Sennheiser that I have (albeit I am having trouble with volume) I love that one. A huge step down from excellent quality. Over the head piece is very cheap and flimsy, ear piece is also plastic and really cheap, very breakable. Major disappointment. I would like quality and durability etc, CS540 has none of this, as I said, cheap and flimsy, not durable and not a good fit.
customer image Greta Riedel
Nith Valley Construction
New Hamburg, ON

Accessories for this product


The has been added to your cart.

What would you like to do next?

Stay up to date! Join our email list today…

Let Us Help You Sometimes it’s easier to talk through your headset decision with a real person. We’d be glad to help.

Give Us a Call 1-800-HEADSETS (1-800-432-3738)
We're here to help you with your purchase Mon-Fri 6:00-4:30 Pacific Time.

Need a Bunch? Our Volume Purchasing Team is here for you. Give them a call at 1-800-319-7315, or email bulkorders@headsets.com.