Plantronics Blackwire C3220 Headset (Workable Unit)
Items are in good working condition and working fine.
Selected materials, comfortable and durable
Flexible and portable, more convenient to use
DSP noise reduction microphone extracts high definition voice
DSP: enhanced digital signal processing technology to reduce background noise
Safe volume to protect your hearing health
Sound guard technology, listening to comfortable sound levels and defending against noise above 118 DB
Dynamic EQ, clearer voice, richer music, automatic adjustment of audio quality,
In voice communication, the voice is clearer; when listening to music, the sound quality is more vivid and rich
Broadband voice frequency response, full coverage, up to 6800hz broadband audio,
More natural and clear voice can be obtained when using the | P telephone and softphone system