Can someone suggest me a good Bluetooth headset for the upcoming iPhone 6s plus, that will not only good for listening to music but I would prefer if it has controls for answering, the call as well as volume keys
Listening to music the primary requirement. I would prefer a round over headset, that should also have the option of attending / cancelling the call, and changing volume.
There's really nothing to the new devices that would make bluetooth headsets suggested for other devices any less relevant now.
The earl plugs provided by apple are good. But placing them on bottom instead of top specially when you are sitting in a car, is bit uncomfortable, that is reason why I prefer wireless bluetooth.