diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3fbe64..1e9581f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - `sinon` ^7.5.0 --> ^19.0.2
   - `webpack` ^5.8.22 --> ^5.97.1
   - `whatwg-fetch` ^3.0.0 --> ^3.6.20
+- Add Muted properties to Sound Plugin Type. [Part of ticket](https://pbskids.atlassian.net/browse/WEB-109)
 
 ### Removed
 
diff --git a/typings/plugins/SoundPlugin.d.ts b/typings/plugins/SoundPlugin.d.ts
index 5227a09..fb76654 100644
--- a/typings/plugins/SoundPlugin.d.ts
+++ b/typings/plugins/SoundPlugin.d.ts
@@ -44,6 +44,11 @@ export class SoundPlugin extends ButtonPlugin {
   sfxButtonsLength: number;
   voButtonsLength: number;
 
+  soundMutedEnabled: boolean;
+  sfxMutedEnabled: boolean;
+  voMutedEnabled: boolean;
+  musicMutedEnabled: boolean;
+
   onSoundVolumeChange(e: Event): void;
   onMusicVolumeChange(e: Event): void;
   onVoVolumeChange(e: Event): void;