Razer Leviathan V2 question

Good day,

I am interested in buying the Razer Leviathan V2 and was wondering if the bluetooth can be turned off completely. I am sensitive to it and don’t want to use it.

Also, can I extend the cable from the subwoofer to the main speaker? The cable is too short for my desk configuration and I wouldn’t be able to put the subwoofer on the floor that way. It would have to be on the desk if I can’t extend the cable.