Plantronics HW251N Supraplus Wideband Monaural NC Headset - Refurbished Category_Best4Headsets/Special Environment/Ear Defenders by Industry/Aviation Headsets has up to a 7

has up to a 7 hrs of talk

Avaya 5410 Digital

SoundGuard Digital acoustic protection:

Digital Signal Processing (DSP) Technology

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Plantronics HW251N Supraplus Wideband Monaural NC Headset - Refurbished Category_Best4Headsets/Special Environment/Ear Defenders by Industry/Aviation Headsets has up to a 7Wideband audio range gives richer communications with natural sound and enhanced audio clarity Digital signal processing (DSP) for reduced echo on VoIP systems Complete family of wideband headsets This is the monaural noise cancelling microphone version in black with foam ear cushions Included PerSonoCall software enables full integration with a wide range of enterprise grade soft phones Connect to IP softphones using the DA45 adapter with in line