ConnectivityUSB-A connectivity: Plug-and-play connectivity to your computer or mobile device via USB-ACertifications: Leading UC vendorsAudioMicrophone: 3-microphone technology for outstanding call performanceNoise-isolating design: Instant noise isolation for improved focus in noisy surroundingsSoftware integration: Additional features available via Jabra Xpress and Jabra DirectSpeakers: Powerful 40mm speakers deliver richer sound for a more immersive audio experienceSpeaker size: 40mm ØSpeaker sensitivity: 117dB @1mW-1kHzSpeaker max input power: 30 mWSpeaker frequency range: 20Hz-20.000HzSpeaker bandwidth – music mode: 20Hz-20.000HzSpeaker bandwidth – speak mode: 100Hz-14.000HzMicrophone type: 3 Digital MEMSMicrophone sensitivity: -26 dBFS/PaMicrophone frequency range: 100Hz-14kHzUser hearing protection: Jabra SafeToneTMEase of useBusylight: 360° busylight on both earcups is visible from all angles, acting as a do-not-disturb sign and protecting your focusBoom arm mute and answer call: Move boom arm up to mute or down to unmute or answer callCall management: Answer/reject calls; increase/decrease speaker volume; muteGeneralBox content: Headset, soft pouch, warranty and warning (safety leaflets)Packaging dimensions: LxWxH 5.5×18.85×21.7cm/2.17×7.42×8.54inMain unit dimension: 186x157x60.5mm/7.32×6.18×2.38in