A:Answer Unfortunately GUI options very lacking. However, on an Android you can, you do this buy having Bluetooth enabled & holding the phone on the LEFT ear cup (The NFC logo is black so a little hard to see) You need to look at your phone screen as the status of connection & battery level only flashes & disappears quickly. Not great but at least that is one way there may be others.
Happy Listening (To some great bands like POP WILL EAT ITSELF)