Getting Started with Harmony 300

Walk through our setup tutorial: adding your home entertainment devices, setting up a one-touch Watch TV Activity and learning more about the usage of your remote. Already set up and something's not working? Our troubleshooters and support articles will help set things right.

Lets get started.

Discover Harmony
What's in the box
Adding devices
Product features
Support articles

Understanding how Harmony works

Your Harmony 300 allows you merge the remotes of up to 4 of your home entertainment devices into one so you can, and should! keep those other remotes out of sight.

The Harmony software will guide you through entering the manufacturer and model numbers of your home devices so Harmony understands how to control them. It then helps you create your Watch TV Activity (or scene) so you're only one-button away controlling your devices.

Let's get started

What's in the box

Harmony 300 remote

Harmony 300 remote enables one-touch Activity based control of your home entertainment system.

Two AA batteries

Two AA batteries come included with your Harmony 300. Remove the back battery cover and insert the two AA batteries into the remote.

USB cable

Your new remote is configured by connecting your Harmony 300 to your laptop or desktop computer using the supplied USB cable, and signing in to the Harmony software.

Adding Devices and Activities

  1. Download and install the Harmony software.

  2. If this is your first Harmony remote, create a new account.

    If you already have a MyHarmony account then you may sign in and add this new remote to your account.

  3. Ensure you've installed the two AA batteries into the back of your remote.

    Using the supplied USB cable connect Harmony 200 to your computer.

  4. If this is your first remote then you'll be prompted to enter the manufacturer and model for each of your home entertainment devices.

    Learn more about finding your device's model number.

    Are you upgrading an existing Harmony remote? You may also choose to import your previous remote settings.

  5. Once all your devices have been entered, the Harmony software will prompt you to create a Watch TV Activity.

    You'll be asked what input each of your devices have to be on in order for you to see video and hear sound. Follow the on-screen instructions, or learn more about creating a Harmony Activity.

  6. That's it! Click the Sync button to transfer these settings to your remote.

Product features

Harmony 300 features

Press the one-touch Watch TV button to power on or off your television, cable/satellite box, AV receiver, and to set them to the correct input for watching television. Learn more about customizing this button.

Control your devices individually using these four buttons. Each device button will light up when an IR command is being sent.

Press the Off button to power off your selected entertainment devices.

Configure the Favorite Channel buttons for quick access to favorite TV channels. Learn more about adding Favorite Channels.

The Harmony 300 buttons are automatically optimized for your Watch TV Activity. Channel buttons will control your cable/satellite box while volume will control your AV receiver.

Want to customize these? Learn more about button mapping.

Customize your Harmony

Create your Watch TV Activity

Set up a Watch TV Activity to automatically power on/off devices you use to watch TV, such as your TV, audio/video receiver, and cable/satellite receiver. After pressing the Watch TV button, be sure to keep the remote pointed at your devices until the device buttons turn off. Press the Watch TV button again to turn off all the devices. Learn more about customizing the Watch TV button.

Setting up Favorite Channels

Add up to 5 Favorite Channels to your remote Learn more about Adding Favorite Channels.

Adjust and tweak each of your buttons.

Customize these buttons to perform whatever functions you choose. Jump to your Favorite Channels, switch to picture-in-picture, or change screen size. Learn more about customizing your remote buttons.

Using your Harmony

Keep your devices in sync

To help keep your Harmony in sync with your devices, avoid turning your television, cable/satellite box and other devices on and off manually or by using their original remote control.

Download the setup software

Depending on your remote, you can set up and configure Harmony using either the Harmony software or Harmony mobile app for iOS and Android.


Harmony community forums

Post a question to the Harmony forums. Our Harmony product managers also actively participate and provide technical advise.


Contact the Harmony Team

Harmony comes with a period of free email and phone support. You also have unlimited access to our online support community.

Contact Us

Harmony Helper

Do you need help finding anything?