A:AnswerIt uses a micro USB to charge it, so YES it will. It only comes with the micro USB cable, so I used an old ASUS plug in module, and it worked fine. I would assume it will charge through any computer USB port as well.
A:AnswerMake sure when you are playin music that it is playing through the Bluebuds. Swipe up from bottom to access control center and make sure AirPlay is set to the correct device.
A:AnswerI use them with a half and open face without any issues on the freeway.. They do block some wind noise. Use the right size buds and hooks and they will be fine. I would also recommend having them over and behind the ear with the strap.
A:AnswerThese headphones do not have that feature. I tend to drape them over my neck when I'm not using them at the moment and they generally stay in place. It's by no means a secure way of wearing them, though.