Not comfortable for longer than 40 mins. Though sound is good. Storage, charging is good. OK for a run. But annoying if longer than 40 mins.

Not fond of the switches on this model, I have arthritis and find it very difficult to manage. Sound is good.

insufficient "noise cancellation". It doesn't include the ANC feature that most modern wireless headphones have, it just blocks out noise. It doesn't block out enough noise for my preference average sound quality - not good enough compared to other headphones i've used these also hurt my ears