Plantronics Audio 400 DSP Corded Headset Review

16 December 2022  |  Dan Coombes


- Foldable Design
- Good sound quality
- Plug and Play USB
- Noise cancelling microphone


- Price reflects overall quality
- Foam ear cushions could be better
- Obsolete model no longer sold

The Plantronics Audio 400 is a digitally enhanced USB headset for PC with a noise-cancelling microphone, foldable design, and DSP technology. Engineered to offer exceptionally clear audio, and ease-of-use; this is an ideal headset for daily office use.

Available at just 35.00 + VAT from The Headset Store, the Plantronics Audio 400 headset comes at a very tempting price point but is it worth your money, or would you be better off with a different model for a similar price?


One unique design feature of the Plantronics Audio 400 is that its foldable, and comes with a stylish leatherette travel pouch. This makes it the ideal USB headset for portability, since it wont take up too much space. Overall, we were impressed with the design as it looks good, feels relatively well-made and is comfortable to wear.

The headband is adjustable from each side and there is a QuickAdjust boom so you can position the noise-cancelling mic to your liking. The foam ear cushions are of a slightly better grade than those typically found on cheaper headsets and truly do cushion your ears from the plastic. The foam ear cushions also help to keep your ears cool if youre using the headset for a long period of time.

Plantronics Audio DSP 400

Sound Quality

As a binaural corded headset, the Plantronics Audio 400 delivers stereo sound. Whilst we have tested headsets with better sound quality, we have also seen worse sound quality at a higher price point. Overall, we were impressed with the quality of the sound on offer from this Plantronics Headset.

The headset further benefits from Digital Signal Processing (DSP) for a reduction in background noise and clearer audio. We tested the audio quality on Microsoft Teams calls, Call of Duty and with Spotify. For a budget headset model, the sound quality of the DSP-400 is very good whilst not perfect.

This corded headset also includes noise-cancelling technology. We have tested the Audio 400 in depth over the last couple of years in a variety of environments and in all instances the headset did a great job of blocking out all but the loudest background noise. Admittedly, its not the most advanced noise-cancellation weve heard but given the price, it is certainly better than average.

What you get

The Plantronics Audio 400 headset comes with a standard two-year warranty from Poly. We have sold literally thousands of these units over the last few years so first hand we can tell you that returns on this headset are almost non-existent. Could the price point make the hassle of returning a broken or faulty Audio 400 pointless? Its possible but its doubtful as Poly have generally done a good job with the unit and its generally very well made.

With this headset, you also receive a stylish leatherette travel pouch and the normal instructions / paperwork you would expect. The box the headset ships in is pretty basic given its entry level price point and could be improved.

Plantronics Audio 400 Review

Final Verdict

The Plantronics Audio 400 is an easy-to-use, extremely portable headset that delivers good audio quality for an affordable price. Were particularly impressed by its foldable design but we would probably look at spending a little more and going with the Poly Blackwire c3320 USB Headset if you do not need a headset that folds.

Buy the Plantronics Audio 400 DSP Headset Online

Find out more and buy the Audio 400 directly from The Headset Store

Buy Online
Recent Posts
9 January 2024  |  Dan Coombes
What Headsets Work With Hearing Aids?

Looking for a Headset for and Hearing Aid Users? Look no further..

15 September 2023  |  Dan Coombes
What is an EHS Cable? - Electronic Hook Switch

What is an EHS cable? Learn how to answer calls via your headset with an EHS cable

11 September 2023
What is a Handset Lifter?

When buying a DECT headset for the office you will be asked if you would like to purchase a handset lifter, but what does it actually mean? And how do you know if you need one?

9 August 2023  |  Dan Coombes
How to Use 2 Headsets on 1 PC for Training

Learn how to use 2 headsets on a PC for training or assessment.

Free UK Delivery orders over £200

DPD Next Working Day