I have an Anker PowerConf S3 https://smile.amazon.com/Anker-PowerConf-Speakerphone-Conference-Compatible/dp/B0899S421T/ref=sr_1_1_sspa I'm pretty happy with the sound, battery life, ease of use, Bluetooth range. It's clear that they do some processing of the sound that the mics pick up. While people on the other end rarely complain about the audio, it does sometimes block sounds - the best example being a cowbell - nobody else on the call could hear it if I tried ringing it quietly or loudly, despite my voice coming throughjust great.

I'll say it's a safe choice as long as you don't need more cowbell.