There are 4x 2.5mm Phillips screws holding the casing together.

Unscrew all four screws, and lift the back cover off.

You now have full access to all the wiring to the speakers.

If you need to remove the speakers, there is a little bit of glue holding them in place. You can lift them out with your finger or flat headed screw driver.

This concludes the teardown of the Deloitte PL-4238 Pocket Mini-Speaker