Megaphone

The Megaphone is a tool introduced in. The player can use it to locate villagers by holding down A and speaking their name into the Nintendo 3DS microphone, to which the villager will reply with a chat bubble. The Megaphone can also be used to wake up Gulliver when he washes up on the town's beach.

Limitations

 * It cannot be used when online communications are active
 * It cannot find villagers that are in houses or shops

In New Leaf
Purchase from Timmy and Tommy's stores (T%26T Mart and higher) for 500 Bells.