diff --git a/howlerjs/howler.d.ts b/howlerjs/howler.d.ts
index 9e245a8058..cdb95ce44f 100644
--- a/howlerjs/howler.d.ts
+++ b/howlerjs/howler.d.ts
@@ -4,8 +4,7 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 declare class HowlerGlobal {
-    mute(): HowlerGlobal;
-    unmute(): HowlerGlobal;
+    mute(muted: boolean): HowlerGlobal;
     volume(): number;
     volume(volume: number): HowlerGlobal;
     codecs(extension: string): boolean;
@@ -56,8 +55,7 @@ interface Howl {
     play(callback?: (soundId: string) => void): Howl;
     pause(soundId?: string): Howl;
     stop(soundId?: string): Howl;
-    mute(soundId?: string): Howl;
-    unmute(soundId?: string): Howl;
+    mute(muted?: boolean, soundId?: string): Howl;
     fade(from: number, to: number, duration: number, callback?: Function, soundId?: string): Howl;
     loop(): boolean;
     loop(loop: boolean): Howl;
diff --git a/react-native-orientation/react-native-orientation-tests.ts b/react-native-orientation/react-native-orientation-tests.ts
new file mode 100644
index 0000000000..23e3c468c4
--- /dev/null
+++ b/react-native-orientation/react-native-orientation-tests.ts
@@ -0,0 +1,18 @@
+/// <reference path="react-native-orientation.d.ts" />
+
+import * as Orientation from 'react-native-orientation';
+
+Orientation.addOrientationListener((orientation)=>{});
+Orientation.removeOrientationListener((orientation)=>{});
+Orientation.addSpecificOrientationListener((orientation)=>{});
+Orientation.removeSpecificOrientationListener((orientation)=>{});
+
+Orientation.getInitialOrientation();
+Orientation.lockToPortrait();
+Orientation.lockToPortrait();
+Orientation.lockToLandscape();
+Orientation.lockToLandscapeLeft();
+Orientation.lockToLandscapeRight();
+Orientation.unlockAllOrientations();
+Orientation.getOrientation((err,orientation)=>{});
+Orientation.getSpecificOrientation((err,orientation)=>{});
diff --git a/react-native-orientation/react-native-orientation.d.ts b/react-native-orientation/react-native-orientation.d.ts
new file mode 100644
index 0000000000..1ee7d6f929
--- /dev/null
+++ b/react-native-orientation/react-native-orientation.d.ts
@@ -0,0 +1,28 @@
+// Type definitions for react-native-orientation
+// Project: https://github.com/yamill/react-native-orientation
+// Definitions by: Moshe Atlow <https://github.com/MoLow/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare module 'react-native-orientation' {
+
+    namespace Orientation {
+        type orientation = "LANDSCAPE" | "PORTRAIT" | "UNKNOWN" | "PORTRAITUPSIDEDOWN";
+        type specificOrientation = "LANDSCAPE-LEFT" | "LANDSCAPE-RIGHT" | "PORTRAIT" | "UNKNOWN" | "PORTRAITUPSIDEDOWN";
+
+        export function addOrientationListener(callback: (orientation: orientation) => void): void;
+        export function removeOrientationListener(callback: (orientation: orientation) => void): void;
+        export function addSpecificOrientationListener(callback: (specificOrientation: specificOrientation) => void): void;
+        export function removeSpecificOrientationListener(callback: (specificOrientation: specificOrientation) => void): void;
+
+        export function getInitialOrientation(): orientation;
+        export function lockToPortrait(): void;
+        export function lockToLandscape(): void;
+        export function lockToLandscapeLeft(): void;
+        export function lockToLandscapeRight(): void;
+        export function unlockAllOrientations(): void;
+        export function getOrientation(callback: (err: Error, orientation: orientation) => void): void;
+        export function getSpecificOrientation(callback: (err: Error, orientation: specificOrientation) => void): void;
+    }
+                
+    export = Orientation;
+}