The Plantronics 655 looks superb ... though voice quality degraded with more obtrusive background noise. The 655 includes upgraded DSP compared with the prior model 645, but apparently it still ...

The design of the Plantronics Audio DSP 400 is excellent. The headphones fold in half and are therefore easily thrown into a bag or suitcase. The headset is extremely light as it's largely made of ...

Well, the 550 DSP is from Plantronics ... there are other Plantronics headsets out there for that. Software for adjusting the microphone and audio settings doesn’t come with the headset but ...

Plantronics has released its new range of digitally enhanced headsets into the Middle East. Each of the four headsets, distributed by Timna Electronics, makes use of digital signal processing (DSP) ...