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Plantronics Blackwire C435M Corded USB Headset
Plantronics Blackwire C435M Corded USB HeadsetPlantronics Blackwire C435M Corded USB HeadsetPlantronics Blackwire C435M Corded USB HeadsetPlantronics Blackwire C435M Corded USB Headset
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Plantronics Blackwire C435M Corded USB Headset

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(£83.99 Inc. VAT)
Save: + VAT



20 in stock, next day delivery

Key Features:

  • Convertible monaural/binaural corded USB headset
  • Discreet over the ear wearing style
  • Optimized for Microsoft Lync
  • In line call controls
  • Option of behind the neck wearing style (neckband sold separately)

Incredible sound quality for your calls

The Plantronics Blackwire C435M is a discreet corded USB headset that offers superb sound quality for softphone communications, video conferences or listening to media, with wideband audio and dynamic EQ.

Noise-cancelling technology

With a noise cancelling microphone, background noise is supressed, while DSP technology prevents echos and distortion and SoundGuard technology protects users against sudden loud noises.

In-line call control

Handling calls is made easy thanks to inline call controls and indicator lights that show call or mute status.

Versatile and comfortable

This high perfomance headset offers versatility in terms of wearing style. Users can opt for either one or two earhooks for mono or stereo sound, and a neckband is also available (sold separately) for people who want an even more discreet headset. It also comes with a protective carry case.

This headset is optimized for Microsoft Lync, but is compatible with all softphones.


  • USB connection
  • Inline call controls (mute, call answer/end)
  • Call/mute indicator lights
  • Wideband sound
  • Noise cancelling microphone
  • Dynamic EQ: automatically adjusts sound according to use
  • DSP for natural sounding voice clarity
  • Compatible with all softphones - optimized for Microsoft Lync

Model:  21599
Bar Code:  5033588036456
Part Number:  85801-05
Brand:  Plantronics
Wearing Style:  Double Ear (Binaural)
Corded or Cordless:  Corded
New or Refurbished?  New


Shipping & Delivery of the Plantronics Blackwire C435M Corded USB Headset

All items ordered from The Headset Store are shipped for speed as well as security.

We use DPD as our preferred courier and charge a UK wide flat rate carriage fee of only £5.95 + VAT no matter how many items you order from us. When you spend over 200 exc. VAT we will ship your order FREE of Charge.

  • We will not dispatch items if you do not have a physical address
  • Orders will only be automatically dispatched within the UK. International Shipping is available at an additional cost to our flat rate.
  • You will always have the opportunity to see the full amount of your purchase, including delivery charges, before you confirm your order.

When you place an order, you will also receive a confirmation email from us when your order is ready to ship.  From this email you will also be able to check the status of your consignment with DPD who will provide tracking information.

Why you should shop with The Headset Store

Our website is fully encrypted to the with the highest 256 bit security standards where our entire site enjoys full and dedicated SSL Certification for full PCI compliance. We do not store your your credit card details.

If you need help then our team are available from Monday to Thursday (between 9:00am and 5:30pm GMT) and on Friday (between 9:00am and 4:30pm GMT)

Please call us on 01675 432 123 to discuss your order and any specific delivery instructions.

Other reasons you should buy from us

  • 14 Day Satisfaction Guarantee, so you'll always find a headset you'll love
  • Genuine UK stock with 100% manufacturer warranty
  • Lowest Price Guarantee
  • No surcharges on credit cards.

Quantity Discounts:
Buy 3+@ £67.89 eachSaving of 3%
Buy 5+@ £66.49 eachSaving of 5%
Buy 10+@ £65.09 eachSaving of 7%
Buy 20+@ £62.99 eachSaving of 10%
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When you buy from us
we guarantee the following:

Complete Satisfaction when you order from us

The Best Knowledge of Business Headsets

We offer Next business day delivery on all orders

We offer as standard a Full 12 Month Warranty

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Free UK Deliveryon orders over 200
5 Star Rated
Buy With ConfidenceOver 26,200 customers
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