A MATERIAL INVESTIGATION
CATEGORY · POSSIBLE CONSTRUCTION
Headphones / speaker
Construction varies. Add the battery branch only if this is a powered wireless model.
What is it made of?
These are material branches to check against the object’s label or specification.
3 sources behind this section
02 · RAW INPUTS BECOME MATERIALS
Electronic assembly in production.
Circuit boards, components, housings and other parts are assembled into the device. Model-specific documentation is needed to follow each branch.
2 sources behind this section
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Add details from your objectMarkings and receipts strengthen the investigation.
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