diff --git a/README.md b/README.md
index 5e05c82..f43ee8c 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,10 @@ Supported Browsers
 Unlisted future versions of browsers will probably work too; I just haven't
 tested them.
 
+Feature detection is possible:
+
+    var isFileSaverSupported = !!self.Blob;
+
 Syntax
 ------