diff --git a/packages/frontend/src/preferences/def.ts b/packages/frontend/src/preferences/def.ts
index 27402a8e6a..8a2cfa23b1 100644
--- a/packages/frontend/src/preferences/def.ts
+++ b/packages/frontend/src/preferences/def.ts
@@ -194,10 +194,10 @@ export const PREF_DEF = {
 		default: 'auto' as 'auto' | 'popup' | 'drawer',
 	},
 	useBlurEffectForModal: {
-		default: DEFAULT_DEVICE_KIND === 'desktop',
+		default: true,
 	},
 	useBlurEffect: {
-		default: DEFAULT_DEVICE_KIND === 'desktop',
+		default: true,
 	},
 	useStickyIcons: {
 		default: true,
@@ -351,7 +351,7 @@ export const PREF_DEF = {
 	},
 
 	'sound.masterVolume': {
-		default: 0.3,
+		default: 0.5,
 	},
 	'sound.notUseSound': {
 		default: false,