Pretty sure this is mold right …?

My sister said she frequently uses her headset when her hair is still wet. I’m pretty sure this is mold. She does dye her hair a lot, but I can’t tell if it’s mold due to the streaking of shape near the top. Should she get a new headset? This is unfortunately an expensive one.

My sister said she frequently uses her headset when her hair is still wet. I’m pretty sure this is mold. She does dye her hair a lot, but I can’t tell if it’s mold due to the streaking of shape near the top. Should she get a new headset? This is unfortunately an expensive one.