We reduce the kinds of materials to do CA65 and CPSIA for option B, due to we modify our design and avoid many materials be contacted by users, and for these materials not directly contacted by users we not need to do CA65 and CPSIA, such as PCBA, wire and EVA etc. and for option A we need to provide all the materials to do CA65 and CPSIA, there are have a great risk to pass CA65 and CPSIA for all the materials