These magic glasses have 3 charges and regain all expended charges daily at dawn. While wearing them, you can expend 1 charge as a bonus action to gain one of the following benefits for 10 minutes or until you take the glasses off:

• You have advantage on Wisdom (Perception) checks that rely on sight. 
• You have advantage on Intelligence (Investigation) checks that rely on sight. 
• You can see magical auras around any visible creature or object out to a range of 30 feet that bears magic, and you learn its school of magic, if any.