I personally feel that this would have scored top marks if it had a built in speaker, however it is purely designed as a microphone and I'll provide my review based on it's functionality.So, I go on conference calls all the time, 3 to 4 times daily for at least 1 hour each time. This has allowed me the freedom from wearing my headset, although it's wireless, it's better to be without a headset totally.The other party were able to hear me crystal clear with me being around 1 to 1.5 meters away without having to shout.The one factor I would like to raise, is that your voice sounds much higher than the normal microphone of my headset.Being able to mute simply by a press of a button is great, ideal for when you're not hosting and avoids the need to use software to mute.All of this was tested on a Windows 10 build with the latest version of MS teams of 2024 without any issues using a standard sound bar for audio.Being plug and play, it took about a minute for the device to be detected, but you would need to choose the device in the application you would be using.4 stars due to it sounding very high pitched at the other end.