The back cover isnt a cover like the front is, it IS the back. Removing all the face screws will allow it to rather easily pop off and expose the inside.

Inside here we will find an onyx tweeter, aura sub, and both of the weighted omni passive radiators.

There's also a SINGLE 18650 battery and the main board.

Tweeter is 4 Ohm, Woofer is 2 Ohm. Remember this as it will be used on the next page