diff --git a/notify.md b/notify.md
index 6ee5da8..38ce73c 100644
--- a/notify.md
+++ b/notify.md
@@ -527,14 +527,21 @@ Open the app and get the API URL. It usually starts with "https://api.day.app/"
 
 You can also use your own API server. Please refer to <https://github.com/Finb/bark-server>.
 
-BARK_SOUND is an optional variable to set the sound of notification. Please refer to the app to get all available sounds.
+You **NEED** to set `BARK_API_URL`, every other parameter is optional. For convenience, `BARK_GROUP` will be automatically set to "ACME" if not set.
 
-BARK_GROUP is the group name of the notifications, which can be shown in the notification center of iOS. 
+For a more detailed description of each parameter, refer to the docs of the [Bark API v2](https://github.com/Finb/bark-server/blob/master/docs/API_V2.md#push).
 
 ```bash
 export BARK_API_URL="https://api.day.app/XXXXXXXXXXXXXXXXXXXXXX"
-export BARK_SOUND="newmail"
-export BARK_GROUP=ACME
+export BARK_GROUP="ACME"
+export BARK_SOUND="alarm"
+export BARK_LEVEL="active"
+export BARK_BADGE=0
+export BARK_AUTOMATICALLYCOPY="1"
+export BARK_COPY="My clipboard Content"
+export BARK_ICON="https://example.com/icon.png"
+export BARK_ISARCHIVE="1"
+export BARK_URL="https://example.com"
 
 acme.sh --set-notify --notify-hook bark
 ```