Inside a bluetooth speaker bulb

A look at the circuitry inside a cheap bluetooth speaker that screws into a standard lampholder.
The quality of construction suggests that it's a highly evolved product. They've managed to fit the whole circuit on a single sided PCB which is quite a feat.

The only thing that lets the unit down is what appears to be an incorrect remote control that has been supplied with it.

Although I unclipped the front cover, it appears to be fitted with a bayonet cap arrangement and just pops apart when the front is twisted slightly. (Potentially exposing live connections inside.)

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