Hi @zhicheng, and thanks for your query. The Tobii Glasses are part of the Tobii Pro business department.
This forum is principally intended for support with the Tobii 4C and EyeX Trackers and their associated SDK’s.
Please get in touch with Tobii Pro Support team directly @ http://www.tobiipro.com/contact/contact-support/ for an
answer to your query.
Apologies for any inconvenience caused and thanks for your understanding. Best Wishes.