Communicate with clients and colleagues clearly with this wired monoaural headset. It features noise-canceling microphone for sound clarity during conversations, and the leatherette ear cushion allows for comfortable extended use. This jabra Evolve mono headset has a busy light indicator to let co-workers know when you are busy, and its USB and 3. 5mm connectors are compatible with computers and mobile devices. 28mm Hi-Fi Dynamic PureSound speaker has 93. 6dB sensivity. Speaker impedance: 32+/-4. 8 Ohm. Noise canceling unidirectional microphone eliminates background noise and reduces high-frequency sounds. Get easy access to the most used functions, like volume and mute, answer, and end calls quickly and easily directly from the control unit. You can connect call control unit to the USB Type A port on your laptop or use the headset's 3. 5mm jack to plug into your computer or personal device, such as a smartphone or tablet. Comes with a convenient desktop call control unit for easy call handling with 3. 12'L cable, while headset cable itself measures 3. 94'. Professional computer headset is designed to help you focus and improve your conversations. Busy light automatically turns on during a call to let others know the person is busy; users can also activate it manually to signal that they do not want to be disturbed. Works straight out of the box. USB power supply by PC. 2-year manufacturer limited warranty. Computer headset captures audio cleanly at a frequencies of 100Hz - 10000Hz. Regulatory approvals: CE, FCC, KCC, RCM, UL; Industrial certifications: Skype for Business, Avaya, Cisco, Alcatel Lucent, and Astra. Boom arm with magnet that integrates into the headset when not on calls. Cord length (ft. ): 3. 94. Over-the-head monoaural headset comes in black with red accents, provides style and comfort with a soft leatherette ear cushion and adjustable headband. Stay approachable in the workplace while taking voice calls with this jabra Evolve professional mono headset.