diff --git a/response.go b/response.go
index 37f20ea..256b9d5 100644
--- a/response.go
+++ b/response.go
@@ -51,11 +51,11 @@ const (
 	// NonPromotionalSubscriptionType is NON_PROMOTIONAL_SUBSCRIPTION messaging type.
 	NonPromotionalSubscriptionType MessagingType = "NON_PROMOTIONAL_SUBSCRIPTION"
 
-	// NotificationNoPushType is NO_PUSH notification type
+	// NotificationNoPushType is NO_PUSH notification type. No notification
 	NotificationNoPushType NotificationType = "NO_PUSH"
-	// NotificationRegularType is REGULAR notification type (default)
+	// NotificationRegularType is REGULAR notification type (default). Sound or vibration when a message is received by a person
 	NotificationRegularType NotificationType = "REGULAR"
-	// NotificationSilentPushType is SILENT_PUSH notification type
+	// NotificationSilentPushType is SILENT_PUSH notification type. On-screen notification only
 	NotificationSilentPushType NotificationType = "SILENT_PUSH"
 
 	// TopElementStyle is compact.