Microsoft 24-BIT Plantronics Microsoft License BLACKWIRE-7225

AUDIO PROFILES Dynamic EQ for telephony and music CODECS 24-bit audio at up to 96 Khz sample rate RECEIVE AUDIO PERFORMANCE Active noise canceling (ANC) OPEN MICROPHONE Yes RECEIVE FREQUENCY RESPONSE 20 Hz - 20 KHz SPEAKER SENSITIVITY 127 dB ±1.5 dB SPEAKER IMPEDANCE 32 ohm SPEAKER SIZE 32 mm HEARING PROTECTION SoundGuard® DIGITAL protects against sound levels above 118dBA; Anti-startle (during calls) detects and eliminates any large sudden increase in signal level; Time-Weighted Average prevents average daily noise exposure from exceeding 85 dBA (enabled by Plantronics Hub). MICROPHONE AND TECHNOLOGY Four omni-directional microphones MICROPHONE FREQUENCY RESPONSE 100 Hz - 10 KHz MICROPHONE SENSITIVITY -26 dBFS +/- 3dB WEIGHT 0.34 lbs/5.5oz/155g CALL CONTROLS Call answer/end, mute, volume MEDIA CONTROLS Mute, play, pause, track forward, back VOICE ALERTS Mute on, mute off, muted, volume maximum, volume minimum, redial, redialing last outgoing call, answering call, noise cancellation of