diff --git a/README.md b/README.md
index b5ac6d9..811b7be 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Schedule Later
 
-schedule-later is a static class that provides methods for managing date-time based tasks, such as starting timeouts and intervals at a specific time of day.
+schedule-later is a static class that provides methods for managing date-time based tasks, such as starting timeouts and intervals at a specific time of day. Under-the-hood, it uses `setTimeout` and `setInterval`.
 
 ## Install