diff --git a/js/actionCreators/index.ts b/js/actionCreators/index.ts
index e48a79d7..0899619c 100644
--- a/js/actionCreators/index.ts
+++ b/js/actionCreators/index.ts
@@ -143,7 +143,7 @@ export function loadSerializedState(
   };
 }
 
-export function loadDefaultSkin() {
+export function loadDefaultSkin(): Dispatchable {
   return { type: LOAD_DEFAULT_SKIN };
 }
 
diff --git a/js/components/AvsWindow/index.js b/js/components/AvsWindow/index.js
deleted file mode 100644
index c48c79ae..00000000
--- a/js/components/AvsWindow/index.js
+++ /dev/null
@@ -1,21 +0,0 @@
-import React from "react";
-import GenWindow from "../GenWindow";
-import "../../../css/gen-window.css";
-
-const AvsWindow = () => (
-  <GenWindow title="Avs" close={() => {}} windowId="AVS_WINDOW">
-    <canvas
-      style={{
-        position: "absolute",
-        top: 0,
-        bottom: 0,
-        left: 0,
-        right: 0,
-        height: "100%",
-        width: "100%"
-      }}
-    />
-  </GenWindow>
-);
-
-export default AvsWindow;
diff --git a/js/components/ContextMenuWrapper.js b/js/components/ContextMenuWrapper.tsx
similarity index 76%
rename from js/components/ContextMenuWrapper.js
rename to js/components/ContextMenuWrapper.tsx
index ce665138..4556f1aa 100644
--- a/js/components/ContextMenuWrapper.js
+++ b/js/components/ContextMenuWrapper.tsx
@@ -1,9 +1,18 @@
-import React from "react";
-import PropTypes from "prop-types";
+import React, { ReactNode } from "react";
 import ContextMenu from "./ContextMenu";
 
-export default class ContextMenuWraper extends React.Component {
-  constructor(props) {
+interface Props {
+  renderContents(): ReactNode;
+}
+
+interface State {
+  selected: boolean;
+  offsetTop: number | null;
+  offsetLeft: number | null;
+}
+
+export default class ContextMenuWraper extends React.Component<Props, State> {
+  constructor(props: Props) {
     super(props);
     this.state = {
       selected: false,
@@ -29,14 +38,14 @@ export default class ContextMenuWraper extends React.Component {
     this._closeMenu();
   };
 
-  _handleGlobalClick = e => {
+  _handleGlobalClick = (e: MouseEvent) => {
     if (e.button === 2) {
       return;
     }
     this._closeMenu();
   };
 
-  _handleRightClick = e => {
+  _handleRightClick = (e: React.MouseEvent<HTMLDivElement>) => {
     const { pageX, pageY } = e;
     this.setState({
       selected: true,
@@ -63,8 +72,8 @@ export default class ContextMenuWraper extends React.Component {
       >
         <ContextMenu
           selected={this.state.selected}
-          offsetTop={this.state.offsetTop}
-          offsetLeft={this.state.offsetLeft}
+          offsetTop={this.state.offsetTop || 0}
+          offsetLeft={this.state.offsetLeft || 0}
         >
           {renderContents()}
         </ContextMenu>
@@ -73,8 +82,3 @@ export default class ContextMenuWraper extends React.Component {
     );
   }
 }
-
-ContextMenuWraper.propTypes = {
-  children: PropTypes.any.isRequired,
-  renderContents: PropTypes.func.isRequired
-};
diff --git a/js/components/EqualizerWindow/Band.js b/js/components/EqualizerWindow/Band.tsx
similarity index 65%
rename from js/components/EqualizerWindow/Band.js
rename to js/components/EqualizerWindow/Band.tsx
index eff8eedc..e13312a2 100644
--- a/js/components/EqualizerWindow/Band.js
+++ b/js/components/EqualizerWindow/Band.tsx
@@ -1,17 +1,34 @@
 import React from "react";
 import { connect } from "react-redux";
-import Slider from "rc-slider/lib/Slider";
+import Slider from "rc-slider";
 import { SET_BAND_FOCUS, UNSET_FOCUS } from "../../actionTypes";
+import { AppState, Dispatch, Band as BandType } from "../../types";
+
+interface StateProps {
+  value: number;
+  backgroundPosition: string;
+}
+interface DispatchProps {
+  handleMouseDown(): void;
+  handleMouseUp(): void;
+}
+interface OwnProps {
+  id: string;
+  band: BandType;
+  onChange(value: number): void;
+}
+
+type Props = StateProps & DispatchProps & OwnProps;
 
 const MAX_VALUE = 100;
 // Given a value between 1-100, return the sprite number (0-27)
-export const spriteNumber = value => {
+export const spriteNumber = (value: number): number => {
   const percent = value / 100;
   return Math.round(percent * 27);
 };
 
 // Given a sprite number, return the x,y
-export const spriteOffsets = number => {
+export const spriteOffsets = (number: number): { x: number; y: number } => {
   const x = number % 14;
   const y = Math.floor(number / 14);
   return { x, y };
@@ -26,10 +43,9 @@ const Band = ({
   onChange,
   handleMouseDown,
   handleMouseUp
-}) => (
+}: Props) => (
   <div id={id} className="band" style={{ backgroundPosition }}>
     <Slider
-      type="range"
       min={1}
       max={MAX_VALUE}
       step={1}
@@ -43,20 +59,19 @@ const Band = ({
   </div>
 );
 
-const mapStateToProps = (state, ownProps) => {
+const mapStateToProps = (state: AppState, ownProps: OwnProps): StateProps => {
   const value = state.equalizer.sliders[ownProps.band];
   const { x, y } = spriteOffsets(spriteNumber(value));
   const xOffset = x * 15; // Each sprite is 15px wide
   const yOffset = y * 65; // Each sprite is 15px tall
   const backgroundPosition = `-${xOffset}px -${yOffset}px`;
-  return {
-    id: ownProps.id,
-    value,
-    backgroundPosition
-  };
+  return { value, backgroundPosition };
 };
 
-const mapDispatchToProps = (dispatch, ownProps) => ({
+const mapDispatchToProps = (
+  dispatch: Dispatch,
+  ownProps: OwnProps
+): DispatchProps => ({
   handleMouseDown: () =>
     dispatch({ type: SET_BAND_FOCUS, input: "eq", bandFocused: ownProps.band }),
   handleMouseUp: () => dispatch({ type: UNSET_FOCUS })
diff --git a/js/components/MainWindow/EqToggleButton.js b/js/components/MainWindow/EqToggleButton.tsx
similarity index 53%
rename from js/components/MainWindow/EqToggleButton.js
rename to js/components/MainWindow/EqToggleButton.tsx
index 06b26633..24233cac 100644
--- a/js/components/MainWindow/EqToggleButton.js
+++ b/js/components/MainWindow/EqToggleButton.tsx
@@ -4,18 +4,29 @@ import classnames from "classnames";
 
 import { getWindowOpen } from "../../selectors";
 import { toggleWindow } from "../../actionCreators";
+import { AppState } from "../../types";
 
-const EqToggleButton = props => (
+interface StateProps {
+  windowOpen: boolean;
+}
+
+interface DispatchProps {
+  handleClick(e: React.MouseEvent<HTMLDivElement>): void;
+}
+
+type Props = StateProps & DispatchProps;
+
+const EqToggleButton = (props: Props) => (
   <div
     id="equalizer-button"
-    className={classnames({ selected: props.getWindowOpen("equalizer") })}
+    className={classnames({ selected: props.windowOpen })}
     onClick={props.handleClick}
     title="Toggle Graphical Equalizer"
   />
 );
 
-const mapStateToProps = state => ({
-  getWindowOpen: getWindowOpen(state)
+const mapStateToProps = (state: AppState): StateProps => ({
+  windowOpen: getWindowOpen(state)("equalizer")
 });
 
 const mapDispatchToProps = {
diff --git a/js/components/PlaybackContextMenu.js b/js/components/PlaybackContextMenu.tsx
similarity index 61%
rename from js/components/PlaybackContextMenu.js
rename to js/components/PlaybackContextMenu.tsx
index 8d636b81..3759ea94 100644
--- a/js/components/PlaybackContextMenu.js
+++ b/js/components/PlaybackContextMenu.tsx
@@ -1,18 +1,21 @@
 import React from "react";
 import { connect } from "react-redux";
-import {
-  previous,
-  play,
-  pause,
-  stop,
-  next,
-  seekForward,
-  seekBackward,
-  nextN
-} from "../actionCreators";
+import * as Actions from "../actionCreators";
 import { Hr, Node } from "./ContextMenu";
+import { Dispatch } from "../types";
 
-const PlaybackContextMenu = props => (
+interface Props {
+  previous(): void;
+  play(): void;
+  pause(): void;
+  stop(): void;
+  next(): void;
+  seekBackward(steps: number): void;
+  seekForward(steps: number): void;
+  nextN(steps: number): void;
+}
+
+const PlaybackContextMenu = (props: Props) => (
   <React.Fragment>
     <Node label="Previous" hotkey="Z" onClick={props.previous} />
     <Node label="Play" hotkey="X" onClick={props.play} />
@@ -55,15 +58,17 @@ const PlaybackContextMenu = props => (
   </React.Fragment>
 );
 
-const mapDispatchToProps = {
-  previous,
-  play,
-  pause,
-  stop,
-  next,
-  seekForward,
-  seekBackward,
-  nextN
+const mapDispatchToProps = (dispatch: Dispatch): Props => {
+  return {
+    previous: () => dispatch(Actions.previous()),
+    play: () => dispatch(Actions.play()),
+    pause: () => dispatch(Actions.pause()),
+    stop: () => dispatch(Actions.stop()),
+    next: () => dispatch(Actions.next()),
+    seekForward: steps => dispatch(Actions.seekForward(steps)),
+    seekBackward: steps => dispatch(Actions.seekBackward(steps)),
+    nextN: steps => dispatch(Actions.nextN(steps))
+  };
 };
 
 export default connect(
diff --git a/js/components/SkinsContextMenu.js b/js/components/SkinsContextMenu.js
deleted file mode 100644
index 772a7f16..00000000
--- a/js/components/SkinsContextMenu.js
+++ /dev/null
@@ -1,34 +0,0 @@
-import React from "react";
-import { connect } from "react-redux";
-import * as Actions from "../actionCreators";
-import { Hr, Node, Parent } from "./ContextMenu";
-
-const SkinContextMenu = props => (
-  <Parent label="Skins">
-    <Node onClick={props.openSkinFileDialog} label="Load Skin..." />
-    <Hr />
-    <Node onClick={props.loadDefaultSkin} label={"<Base Skin>"} />
-    {props.availableSkins.map(skin => (
-      <Node
-        key={skin.url}
-        onClick={() => props.setSkin(skin.url)}
-        label={skin.name}
-      />
-    ))}
-  </Parent>
-);
-
-const mapStateToProps = state => ({
-  availableSkins: state.settings.availableSkins
-});
-
-const mapDispatchToProps = {
-  loadDefaultSkin: Actions.loadDefaultSkin,
-  openSkinFileDialog: Actions.openSkinFileDialog,
-  setSkin: Actions.setSkinFromUrl
-};
-
-export default connect(
-  mapStateToProps,
-  mapDispatchToProps
-)(SkinContextMenu);
diff --git a/js/components/SkinsContextMenu.tsx b/js/components/SkinsContextMenu.tsx
new file mode 100644
index 00000000..3660d06d
--- /dev/null
+++ b/js/components/SkinsContextMenu.tsx
@@ -0,0 +1,55 @@
+import React from "react";
+import { connect } from "react-redux";
+import * as Actions from "../actionCreators";
+import { Hr, Node, Parent } from "./ContextMenu";
+import { AppState, Skin, Dispatch } from "../types";
+
+interface StateProps {
+  availableSkins: Skin[];
+}
+
+interface DispatchProps {
+  loadDefaultSkin(): void;
+  setSkin(url: string): void;
+  openSkinFileDialog(): void;
+}
+
+type Props = StateProps & DispatchProps;
+
+const SkinContextMenu = (props: Props) => (
+  <Parent label="Skins">
+    <Node onClick={props.openSkinFileDialog} label="Load Skin..." />
+    <Hr />
+    <Node onClick={props.loadDefaultSkin} label={"<Base Skin>"} />
+    {props.availableSkins.map(skin => (
+      <Node
+        key={skin.url}
+        onClick={() => props.setSkin(skin.url)}
+        label={skin.name}
+      />
+    ))}
+  </Parent>
+);
+
+const mapStateToProps = (state: AppState): StateProps => ({
+  availableSkins: state.settings.availableSkins
+});
+
+const mapDispatchToProps = (dispatch: Dispatch): DispatchProps => {
+  return {
+    loadDefaultSkin() {
+      dispatch(Actions.loadDefaultSkin());
+    },
+    openSkinFileDialog() {
+      dispatch(Actions.openSkinFileDialog());
+    },
+    setSkin(url: string) {
+      dispatch(Actions.setSkinFromUrl(url));
+    }
+  };
+};
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(SkinContextMenu);