Review on 🔉 AV Access USB Speakerphone: Clear Full-Duplex Audio with 4 Mics Beamforming & 360° Voice Pickup - Perfect for Skype, Zoom, Teams Conference Calls by Kelli Palmer

This model has Bluetooth and a built-in battery. I've tested it on Zoom and Skype calls and it works well. The sound is clear, the microphone is good. Even when I moved around the table, there was no difference in the volume of my voice recording. An array of 4 mics is enough to capture 360 degree audio, which is the main reason I bought this speaker mic. This is very useful for a Zoom conference session where I need full duplex communication. The touch button works well. The only problem I have are the touch buttons too. If I move the microphone during a call, I will inevitably touch these buttons and may end the call accidentally. You should implement a lock button to prevent accidental touch inputs. The Bluetooth range is good. I can move the speaker mic to other rooms and the connection is still perfect. That's enough for the speaker volume. The only time I have to turn up the volume is when the other party walks away from their phone. You also need to get one of these devices. Background noise reduction depends on the application you are using to make the call. I have less problems with Zoom and more with Skype. For the price I got I think it's worth 5 stars.