A:AnswerMaybe. It depends how far away the locker is. They advertise 30 feet, but I can go a little further if its in the same room. My gym has lockers in the workout room, so I can leave my phone in one of those lockers. I've experimented at work, it doesn't work well through thick walls...so I can't leave my phone at my desk when I use the ladies room.
A:AnswerBestbuy offers Geeksquad- I always buy it on things I would struggle to replace. They are AWESOME and risk free- got a new OLED TV when it got damaged by lightning.
These earphones are the BEST, and better noise isolation in a plane than my wired Bose noise canceling buds.