diff --git a/README.md b/README.md
index 0013285..971715b 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,17 @@ You can also define a function, that'll receive current progress and for example
 </AnimatedCircularProgress>
 ```
 
+Finally, you can manually trigger a duration-based timing animation by putting a ref on the component and calling the `performLinearAnimation(toValue, duration)` function like so:
+```jsx
+<AnimatedCircularProgress
+  ref='circularProgress'
+  ...
+/>
+```
+```javascript
+this.refs.circularProgress.performLinearAnimation(100, 8000); // Will fill the progress bar linearly in 8 seconds
+```
+
 ## Configuration
 
 You can configure the passing by following props: