Phonograph

Oracle of Seasons
The Phonograph is the tenth and final item in the Oracle of Seasons trading sequence. It is given to Link by Guru-Guru in exchange for helping the Windmill spin faster with the Engine Grease. When played for the Deku Scrub in the Lost Woods, he will give Link instructions on how to navigate the Lost Woods and find the Noble Sword.

The Minish Cap
There is also a Phonograph in The Minish Cap inside the Baris' house in Hyrule Town. Unlike the first Phonograph, it isn't an item Link can carry around. This Phonograph can be used for a Sound Test after Link collects 130 figurines.