A clean convex mirror that can be used to detect the appearance of Boss Monsters exists in the map. If the Boss Monster exists, its location will be indicated on the mini map during the active duration of this item.
The effect has a 10 minute duration, the effect is cancelled once the player leaves the map or logs out.
Lord of the Dead, boss monsters in the Bio Lab, Ktullanux, Memory of Thanatos and some other event MVP monsters can not be detected by using this item.

[iRO Description]
A clean convex
mirror that can be
used to detect the
appearance of Boss
Monsters. 10 minute
duration that is canceled when the player leaves
the map or logs out.
Lord of the Dead, and
Boss Monsters in the
Bio Lab, Ktullanux,
Memory of Thanatos,
and some other event
MVP monsters cannot
be detected by
using this item.