I have been offering remote key holding for slaves worldwide.
No matter where they are, I can control their chastity as long as they have internet connection. I use the best key holder APP which allows me to control any chastity cage or device. My slaves get to unlock the cage when I send them permission via the APP, otherwise they can't.
I have successfully controlled the chastity of 321 slaves by Sept. 22nd, 2021
By the time I have 1000 chastity slaves, I am gonna offer the no. 1000 free chastity key holding for life time.