diff --git a/adb/README.md b/adb/README.md
new file mode 100644
index 0000000..fd65964
--- /dev/null
+++ b/adb/README.md
@@ -0,0 +1,12 @@
+# Android Studio
+- https://developer.android.com/studio
+- Disable AVD during installation
+- Blank project
+- Permit USB from Phone
+
+# User env
+`%LOCALAPPDATA%\Android\sdk\platform-tools`
+
+```shell
+adb
+```
\ No newline at end of file