You seem to ask the question in bad faith, as clearly this is not the right place to find out these statistics. Google is your friend. There is evidence that wa

You seem to ask the question in bad faith, as clearly this is not the right place to find out these statistics. Google is your friend. There is evidence that warnings, in general, do work. There is also evidence that wired headphones, which don't have batteries in them, do not self-combust and therefore will not require such a label. A label that differentiates products is certainly useful. There is also plenty of evidence that most people are unaware of the potential dangers of lithium batteries. There is no parallel with Prop 65 warnings here.