Monocle of Comprehension
Sharing this monocle with your friends helps them understand the efreets with whom you're dealing. You didn't tell them that wearing it was unnecessary.
Wondrous Item 1,000 gp
You can use this item as an optional focus for the Comprehend Language ritual. When you do, it splits into up to 8 duplicate monocles for the duration of the ritual. Any creature holding one of the monocles gains the same comprehension granted you by the ritual until it is no longer holding the monocle or the ritual’s duration expires.
Published in Dragon Magazine 387, page(s) 28.