A:AnswerYes it has all of the above. 3 taps to restart your song (and another 3 to go to the previous one), two taps for next song (right earbud). Tap repeatedly for volume up and hold for volume down (left earbud). For the volume function, you have to enable it within the app.
A:Answerno they wont work well as a headset replacement. these are made for listening to music or media from your tablet/phone not a gaming or computer device.
A:AnswerYou can travel with these just fine. I kept mine in my personal bag when I traveled via airplane, and put it in the same bin as my phone when passing through TSA.
A:AnswerThey are okay for low to moderate workouts. Any high intensity workouts will make them uncomfortable and risk damage as they aren't water resistant. I did 30 minutes on treadmill and they bounce slightly, getting loose so that I could hear the treadmill and my foot steps. Had to readjust them and push back into my ear several times. Weightlifting was fine, couldnt hear the weights.