Yeah but they are authorized by Drop:
“Kaviso is a brand partner in the electronics and outdoor industry which utilizes data-backed, tailor-made strategies, to maximize brands potential. Our seller central account is an authorized seller of exclusive products and brands such as Drop (formerly Massdrop), beyerdynamic, and Hifiman.”
And the link underneath the title leads to a Massdrop product page. where they are listed for that price