Excellent in Skype for Business and Teams, in which it has been used for countless hours without any complaints from any conversation partner about the quality of the conversations. The sound is crystal clear - always in reasonable calls. The connectivity is the simplest I have seen, it does not require drivers or any other software, it is recognized directly and works perfectly. Overall, one of the most trouble-free peripherals I have ever used. Its price is steep, and it may seem funny that for this money you don't get any other feature like Bluetooth, but it does exactly what it says it does, and it does it flawlessly.