Sinnoh Sound is a radio program in Pokémon HeartGold and SoulSilver that lets you acquire rare Pokémon who are mainly native to the Sinnoh region. Sinnoh Sound is on the Pokémon Music Channel on Thursday. It will play like the Poké Flute, March or Lullaby, attracting certain Pokémon. Finding, and capturing Pokémon are done by normal means, with the exception of the Sinnoh Sound being turn on. A downside of the Sinnoh Sound, especially when hunting for a specific, or rare Pokémon, is that you need to turn on the Sinnoh Sound after every battle, or everytime you enter a new area. Sinnoh Sound is used in the same fashion as the Hoenn Sound.