Somewhat on the heels of Sonos having to remove lock screen controls, would it possible to add the ability to pair a bluetooth remote with a Sonos speaker/room? The below is the sort of device that I am thinking of
The idea is that you could pair a bluetooth remote to a room for basic controls, and function pretty much like the ikea remotes and lutron remotes do, but without utilizing wifi or requiring purchase of a hub.
I am not sure that Sonos speakers would have the hardware for this. Speakers that do not have bluetooth, only BLE, probably not. Even those with bluetooth (as a sink), possible not. The speakers may not be capable of connecting to a bluetooth source and bluetooth remote at the same time. Even if not currently connected to a bluetooth source, the speaker may not be able to connect to a bluetooth remote and play a non-bluetooth source.
Still this appears to be a function that android and iOS have the hardware to handle, so perhaps the hardware is more generic and already in Sonos devices. Even if Sonos needed to create their own Sonos remote (perhaps even BLE to work with more speakers), this might be something that others are interested in.
FYI, this functionality may actually work to control Sonos via an android phone already. If the android lockscreen controls are currently controlling Sonos, then it makes sense that a bluetooth connected remote (any device with volume controls) would control Sonos.
