颜色分类:1 ;  3.4A黑色-标准款           2 ;  3.4A黑色-升级款       3;   4.8A黑色-升级款                           4;   2.4A+QC3.0黑色-升级款
Color classification: 3.4A black - standard models 3.4A black - upgrade models 4.8A black - upgrade models 2.4A + QC3.0 black - upgrade models
材质；PC
Material; PC