Noticed this morning that the VE rubber rings have a tendency to pop off of the smaller earbud shells, like the Zen LL (similar size to the QianYun Qian39).
The small "lip" on the ring appears to be sized to catch on the ridge around the perimeter of MX500 shells.
But the Zen LL has a smooth curve around from the front to the back, rather than a ridge for the ring to catch on.
So, the Zen LL will probably be getting a donut foam, to help provide a secure fit.
Or, I may try using this style of earbud tip "with wings", since they wrap further around the shell, and should stay on the Zen LL.
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