Apple ipod

Can you explain this sentence please?

Both the iPhone and the iPod displays are designed with arsenic-free glass and economic power, mercury-free LED backlight technology. Both products are shipped free of brominated flame retardants (BFRs) in logic boards and vinyl chloride (PVC) on the phone and the headset. Apple's engineers also redesigned power adapters for iPod and iPhone exceed the highest overall efficiency standards energy.

This essentially means that the technology and green LED power adapter again. And no other chemicals that can leach into your body, but I think they are too conservative. You basically eat your iPod to get everything they could have put there, but nevertheless, even if you've eaten your iPod, no dies of poison.

iFixit.com with iPhone 3GS’ naked logic board