Remember specially in California if there is a possibility that the item might come into contact with any cancerous substances including lead. They have to add that warning.
That could be something as simple as they use lead solder to something as confluted as the tool used to make the headphones could have come into contact with a cancerous agent at some point during its manufacturing.
HotRoderX t1_iu60nr8 wrote
Reply to Do headphones still contain lead? by evildrcrocs
Remember specially in California if there is a possibility that the item might come into contact with any cancerous substances including lead. They have to add that warning.
That could be something as simple as they use lead solder to something as confluted as the tool used to make the headphones could have come into contact with a cancerous agent at some point during its manufacturing.