A:AnswerThis flash drive has the convenience of full size USMB connection on one end and micro USB connection on the other end. This is intended to make the flash drive compatible with more devices. Both ends cannot function simultaneously. The answer to your question is no.
A:AnswerYes it does. I use this because I have a 256SSD that always gets filled. This would be my expanded device. Best of all, it's small enough to just leave in the computer and forget about it.
A:AnswerIt should work on One plus one. If your stock file explorer doesn't work, just download another file explorer for google play and it will work.
A:AnswerFrom my knowledge the lighter is only good for charging. If your drive has bluetooth then once it connects you should have no problem's.
The cigarrette lighter itself cannot be used to play music & I have found nothing to change my mind.
Buy a bluetooth audio transmitter instead with USB slot.