diff --git a/howlerjs/howler-tests.ts b/howlerjs/howler-tests.ts
index aff0df926..c358f8e3b 100644
--- a/howlerjs/howler-tests.ts
+++ b/howlerjs/howler-tests.ts
@@ -4,6 +4,10 @@
  */
 ///<reference path="howler.d.ts"/>
 
+import * as howler from "howler";
+
+howler.Howler = Howler;
+howler.Howl = Howl;
 
 Howler.codecs('ogg');
 Howler.iOSAutoEnable = true;
@@ -32,4 +36,4 @@ var sound = new Howl({
 });
 
 // shoot the laser!
-sound.play('laser');
\ No newline at end of file
+sound.play('laser');
diff --git a/howlerjs/howler.d.ts b/howlerjs/howler.d.ts
index 577c9fd78..b1265dc6b 100644
--- a/howlerjs/howler.d.ts
+++ b/howlerjs/howler.d.ts
@@ -1,9 +1,8 @@
-// Type definitions for howler.js v1.1.25
+// Type definitions for howler.js v1.1.29
 // Project: https://github.com/goldfire/howler.js
 // Definitions by: Pedro Casaubon <https://github.com/xperiments/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
-
 declare class HowlerGlobal {
     mute(): HowlerGlobal;
     unmute(): HowlerGlobal;
@@ -15,13 +14,10 @@ declare class HowlerGlobal {
 
 declare var Howler: HowlerGlobal;
 
-
-interface IHowlCallback {
-    (): void;
-}
 interface IHowlSoundSpriteDefinition {
-    [name: string]: number[]
+    [name: string]: number[];
 }
+
 interface IHowlProperties {
     autoplay?: boolean;
     buffer?: boolean;
@@ -30,33 +26,32 @@ interface IHowlProperties {
     sprite?: IHowlSoundSpriteDefinition;
     volume?: number;
     urls?: string[];
-    onend?: IHowlCallback;
-    onload?: IHowlCallback;
-    onloaderror?: IHowlCallback;
-    onpause?: IHowlCallback;
-    onplay?: IHowlCallback;
+    onend?: Function;
+    onload?: Function;
+    onloaderror?: Function;
+    onpause?: Function;
+    onplay?: Function;
 }
 
-
-declare class Howl {
-
+interface Howl {
     autoplay: Boolean;
     buffer: Boolean;
     format: string;
     rate: number;
     model: string;
-    onend: IHowlCallback;
-    onload: IHowlCallback;
-    onloaderror: IHowlCallback;
-    onpause: IHowlCallback;
-    onplay: IHowlCallback;
-    constructor(properties: IHowlProperties);
+    onend: Function;
+    onload: Function;
+    onloaderror: Function;
+    onpause: Function;
+    onplay: Function;
+    load(): Howl;
     play(sprite?: string, callback?: (soundId: number) => void): Howl;
+    play(callback?: (soundId: number) => void): Howl;
     pause(soundId?: number): Howl;
     stop(soundId?: number): Howl;
     mute(soundId?: number): Howl;
     unmute(soundId?: number): Howl;
-    fade(from: number, to: number, duration: number, callback?: IHowlCallback, soundId?: number): Howl;
+    fade(from: number, to: number, duration: number, callback?: Function, soundId?: number): Howl;
     loop(): boolean;
     loop(loop: boolean): Howl;
     pos(position?: number, soundId?: number): number;
@@ -66,8 +61,18 @@ declare class Howl {
     volume(volume?: number, soundId?: number): Howl;
     urls(): string[];
     urls(urls: string[]): Howl;
-    on(event: string, listener?: () => void): Howl;
-    off(event: string, listener?: () => void): Howl;
+    on(event: string, listener?: Function): Howl;
+    off(event: string, listener?: Function): Howl;
     unload(): void;
 }
 
+interface HowlStatic {
+    new (properties: IHowlProperties): Howl;
+}
+
+declare let Howl: HowlStatic;
+
+declare module "howler" {
+    export let Howler: HowlerGlobal;
+    export let Howl: HowlStatic;
+}