Qiui Key Pod
I saw Emma's post on the Qiui Cellmate and that it had a big issue with getting hacked, but I see they now have a new product to lock and unlock a key remotely. I have never used it, but it might be a good option for long distance chastity. I guess if it does get hacked a hammer or dremmel could open the key pod.
This is pretty neat and a much safer option than the hacked cage. Thank you for posting.