A:AnswerThis headset probably has the best Lithum battery in the industry, with up to a 16 hour, yes, SIXTEEN hour play time. I've gone two days without charging. A great set!
A:AnswerThey are awesome for calls i tried a lot before and driving with windows down people hear all the noises all the time and wirh this one they barely hear those noises
A:AnswerThe sound quality is acceptable, similar to the quality of the earbuds that come with my iPhone 6S plus.
Occasionally there are some popping sounds, when the Bluetooth is paired to more than one device (eg, my Apple Watch).