Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
The bottle will need to have a sealed compartment for the electronics, and also to feature the paired thread/or push-pull of the top end of the bottle and the cap.
Any sketches/drawing you may send over will be useful to see what you need/want.
For any more questions we could chat here.
Regards
Bogdan