https://help.boox.com/hc/en-us/community/posts/30888952767380-18-557-384-507—business-classBy loma chauhan / October 1, 2024 https://help.boox.com/hc/en-us/community/posts/30888952767380-18-557-384-507-%F0%9D%94%B8%F0%9D%95%9A%F0%9D%95%A3-%F0%9D%94%BD%F0%9D%95%A3%F0%9D%95%92%F0%9D%95%9F%F0%9D%95%94%F0%9D%95%96-business-class