diff --git a/README.md b/README.md
index abfdbcde..49d5ed03 100644
--- a/README.md
+++ b/README.md
@@ -195,7 +195,6 @@ using System.Collections.Generic;
        onFullscreenPlayerDidPresent={this.fullScreenPlayerDidPresent}   // Callback after fullscreen started
        onFullscreenPlayerWillDismiss={this.fullScreenPlayerWillDismiss} // Callback before fullscreen stops
        onFullscreenPlayerDidDismiss={this.fullScreenPlayerDidDismiss}  // Callback after fullscreen stopped
-       onProgress={this.setTime}               // Callback every ~250ms with currentTime
        style={styles.backgroundVideo} />
 
 // Later to trigger fullscreen
@@ -242,6 +241,7 @@ var styles = StyleSheet.create({
 ### Event props
 * [onLoad](#onload)
 * [onLoadStart](#onloadstart)
+* [onProgress](#onprogress)
 * [onTimedMetadata](#ontimedmetadata)
 
 ### Methods
@@ -496,9 +496,9 @@ Payload:
 
 Property | Description
 --- | ---
-isNetwork | Boolean indicating if the media is being loaded from the network
-type | Type of the media. Not available on Windows
-uri | URI for the media source. Not available on Windows
+isNetwork | boolean | Boolean indicating if the media is being loaded from the network
+type | string | Type of the media. Not available on Windows
+uri | string | URI for the media source. Not available on Windows
 
 Example:
 ```
@@ -511,6 +511,24 @@ Example:
 
 Platforms: all
 
+#### onProgress
+Callback function that is called every progressInterval seconds with info about which position the media is currently playing.
+
+Property | Description
+--- | ---
+currentTime | number | Current position in seconds
+playableDuration | number | Position to where the media can be played to using just the buffer in seconds
+seekableDuration | number | Position to where the media can be seeked to in seconds. Typically, the total length of the media
+
+Example:
+```
+{
+  currentTime: 5.2,
+  playableDuration: 34.6,
+  seekableDuration: 888
+}
+```
+
 #### onTimedMetadata
 Callback function that is called when timed metadata becomes available
 
diff --git a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
index 88832de2..614da57e 100644
--- a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
+++ b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
@@ -136,7 +136,7 @@ class ReactExoplayerView extends FrameLayout implements
                             && player.getPlayWhenReady()
                             ) {
                         long pos = player.getCurrentPosition();
-                        long bufferedDuration = player.getBufferedPercentage() * player.getDuration();
+                        long bufferedDuration = player.getBufferedPercentage() * player.getDuration() / 100;
                         eventEmitter.progressChanged(pos, bufferedDuration, player.getDuration());
                         msg = obtainMessage(SHOW_PROGRESS);
                         sendMessageDelayed(msg, Math.round(mProgressUpdateInterval));