I have used these for more than a week and I have not experienced any lag in connection. Have contacted seller. tymphany stw350f Super easy to put together! Hands free call quality on the F1 was on par with a Plantronics Explorer though, maybe a bit better. tymphany stw350f This thing is less sturdy and stable than a rotted rope bridge in the Himalayas. tymphany stw350f If you are pondering buying these and walking around. Nor do they show up in Bluetooth on my iPhone 12 Max. M50x got much better padding on the headband. tymphany stw350f Only complaint I have is that the sole is higher than I anticipated. What a difference between the real thing and a knock off.
tymphany stw350f