Product no. 80: Camera remote controller

What if the battery needs to be replaced? The lid is tight so you need a screwdriver ...

... or maybe you need a knife ... the text written on the lid says "for type of battery please refer to instruction in the user manual". Even that is not true; the user manual makes no mention of a battery.

There is a small gap now, but if you wind more you'll probably break the device.

The result looks ugly. And yet the lid held its secret.