Shout your love to everyone online and leave your mark on them for the next 24 hours. Requires Trove Mastery Rank 20.
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— Item Description
The Heart-a-Phone is a world speaker item that can be bought from the store for 250 Credits, or found rarely in Chaos Chests. To use the item, the player must have a Mastery rank of 20. Using it will make a broadcast message, and chat message, saying "[Heart-a-Phone user's username] <3 [Heart-a-Phone receiver's username]" and will make the receiver's username red for 24 hours.