A:AnswerYou answer the call via your phone or I believe there is an option where you can touch the earbuds instead. Not sure of a precise distance, but you can definitely walk across a large room and be fine. I probably wouldn't push it more than 25ft or so. They charge via USB so you can plug it into any USB port.
A:AnswerThese are different than most earbuds. They only have a little rubber like ring on them to assist fit, but I’m quite happy with the fit and sound.