The wearer can use detect thoughts at will. Furthermore, he can send a telepathic message to anyone whose surface thoughts he is reading (allowing two-way communication). Once per day, the wearer of the helm can implant a suggestion (as the spell, Will DC 14 negates) along with his telepathic message.

Prerequisites: Craft Wondrous Item, detect thoughts, suggestion.
Cost to Create: 13,500 gp, 1080 XP, 27 days.