So, I was on Amazon and picked up on this message.(Prop 65)

[TheQsanity]

I was looking for some phone chargers and found some I like but found this message within all the text. Anybody know anything about this?
http://www.amazon.com/gp/help/customer/display.html?ie=UTF8&nodeId=3234041

I did a little Googling.
http://www.belden.com/pdfs/quality/prop65qa_nema.pdf

II. THE WIRE AND CABLE
PRODUCTS SETTLEMENT
What liabilities are “settled” by this agreement?For companies who join the Consent Judgment, all past liability for claims under Proposition 65 and certain other provisions of California law relating to exposures to the certain chemicals specified in the Consent Judgment contained in jacketed wire and cable. Future liability is settled provided there is compliance with the Consent Judgment. What products are covered? The Settlement Agreement covers thermoset/thermoplastic and thermoplastic elastomer coated wires,
cables and cords and their plugs and connectors (collectively referred to as “Cords”) and associated products (all of
which are “Covered Products”). The Agreement is not limited to PVC jackets.

http://oehha.ca.gov/prop65/p65faq.html

Here is the wire I was looking at: http://www.amazon.com/gp/product/B009CN4OGM/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A64DJEEWAE2I3
This same one does not have a warning: http://www.amazon.com/Vojo-Magnet-Micro-USB-Cable/dp/B007OU0A90/ref=pd_sim_cps_2

From what that PDF says, it seems to be be marked because of the plastic around the cable.