diff --git a/public/sound/toggle.mp3 b/public/sound/toggle.mp3
new file mode 100644
index 0000000..ed3e308
Binary files /dev/null and b/public/sound/toggle.mp3 differ
diff --git a/src/hooks/useTimer.ts b/src/hooks/useTimer.ts
index ffc8e4f..293218d 100644
--- a/src/hooks/useTimer.ts
+++ b/src/hooks/useTimer.ts
@@ -14,6 +14,8 @@ import { useGetters } from 'vuex-composition-helpers'
 import { GetterTree } from 'vuex'
 import { State } from '@/store'
 
+const toggleSound = new Audio('/sound/toggle.mp3')
+
 const format = (num: number) => {
   return num.toString().padStart(2, '0')
 }
@@ -59,6 +61,8 @@ export const useTimer = () => {
 
         const dev = isDev1Turn.value ? dev1.value : dev2.value
 
+        toggleSound.play()
+
         notify(i18n.t('notification.change.title').toString(), {
           body: i18n.t('notification.change.body', { dev }).toString()
         })