Thank you nice review by @himeahri
1. Wig is made of artifact heat-resisting hair fiber;
2. Headphone is made of EVA, not easy break, but please be careful while using, not heavy, so it's quite comfor to wear it :) Please note that the headphone has no reality use, it's for cosplay only.
Color of the wig: dark brown
Suggest for head circumference:
54-57cm/21.26-22.44" and has stretch strap to adjust size and keep tight on head.
You can buy wig accessories here
If you want the color darker, you can check below: