Review of Poly Sync 20 Speaker Phone which is certified for Microsoft Teams, Zoom etc. I am looking into Poly`s Blogpost about 7 Top Feature and review each single one:

• call quality (also full duplex, tests with Microsoft Teams, Zoom and riverside.fm)
• speakerphone audio quality (voice and music)
• battery life & recharging with your mobile phone
• durability and water resistance
• Certifications (Microsoft Teams and Zoom)
• Connectivity with USB (USB-C and A) and Bluetooth

you can buy it at Amazon (Affiliate Link): http://geni.us/polysync20
This Blogpost is unpaid, Poly provided me a free test sample.