weak speakers, good microphone, mixed on bluetooth, decent on USB

Updating the review after about a month and a half of use. 1) I wish I had returned it while I had a chance 2) The performance of the speakers was not great to begin with and has likely deteriorated over time. The volume (max) is acceptable in a small room but then you start getting distortion It is clear but too weak at lower volume settings For something that cost $180 this is not at all acceptable. I have now had the chance to compare it with a few other comparably or lower products that some other people purchased, and they are far superior. I got this speakerphone to use with zoom/skype etc calls from my computer and also for bluetooth connected calls from my Samsung Galaxy S8 It works very well connected to the computer. Sound volume from the speakers is OK for a small room, when placed near the upper end of the volume. It is totally inadequate for a larger conference room use. With the bluetooth, even with the phone a foot away from the M2 the results have been mixed. A few times the calls had a lot of crackling. You have to turn the volume to the max to be able to hear the instructions for joining the conference. Once on the conference, the microphone pickup is good -- the people on the other end were not able to tell the difference between the microphone on the M2 vs the microphone on the Galaxy S8. However the speaker volume even on max is not much better than the speaker volume on the Galaxy S8. It may be a little clearer. I may try to attach an auxiliary speaker system and try that out. However, for a device that costs nearly $200 this is quite unacceptable. I am considering returning it and getting the Jabra 510 or 710 or a different brand.

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