Useful Goggles

On a first glance they look like any other pair of goggles and don’t seem to do anything. With a bit of fiddling, however, they can provide the user with an interesting selection of additional senses.
Benefit: You gain a number of senses usable one at a time (you can switch between them as a swift action): [Ghostwise sight] out to 45 ft, [Darkvision], or arcane sight as the spell.