Plantronics Blackwire C3210 USB Mono
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Technical specifications:
Connectivity: USB Type-A;
Mono, for one ear;
Noise-Canceling microphone
Dynamic EQ - automatic adjustment of sound for use in voice or multimedia;
Frequency response (headphones): 20 - 20,000 Hz;
Frequency response of the microphone: 100 - 10,000 Hz;
SPL: 118 dB;
Digital Signal Processing (DSP) and Wide band frequency - optimize sound for a more natural voice;
Sound Guard function protects against sound peaks above 118 db SPL (sound pressure level);
Support for all leading Softphone providers; Avaya, Cisco, IBM, etc .;
Leather earrings;
Weight: 87 g.
Warranty: 24 months