A user working in a busy office environment is looking for a wireless headset for use during conference calls on a laptop. The office has an open floor plan and employees frequently walk around while discussing projects. Which type of headset should the user be recommended to ensure clear communication and mobility within the office?
An infrared headset without a microphone
A set of stereo speakers with a built-in microphone
A wired USB headset with noise-cancelling microphone
A Bluetooth headset with noise-cancelling microphone