Creating a speaker group using Chromecast is a fantastic way to amplify your audio experience. Before diving into the setup process, ensure that your mobile device and WiiM device are connected to the same Wi-Fi network for seamless device integration.

Important Preliminary Step: Before creating your Chromecast Speaker Group, it's essential to add your WiiM device to a room. If you're unsure how to do this, please refer to this helpful article for guidance.

Now, let's get started with the Chromecast Speaker Group setup:

1. Launch the Google Home App: Start by opening the Google Home app on your mobile device. Make sure you are signed in with your Google account.

2. Access Settings: In the Google Home app, tap on the 'Settings' tab. This is where you can manage your devices and groups.

3. Navigate to Devices, Groups & Rooms: Within the Settings menu, look for the 'Devices, groups & rooms' section. You'll find this by clicking on the arrow icon located to the right of the section title.

4. Select Your Devices: You will see a list of available devices. Go through this list and choose each device you wish to include in your speaker group. As you select a device, a tick mark will appear next to it, indicating your selection.

5. Create Your Group: After selecting the desired devices, tap 'Next'. You will then be prompted to give your new speaker group a name. Choose a name that is easily recognizable and relevant to its use.

6. Save and Enjoy: Finally, tap 'Save' to complete the setup of your new speaker group. Your devices are now linked, allowing you to enjoy a synchronized audio experience across multiple speakers.

Remember, you can always modify your speaker group later by adding or removing devices through the Google Home app. Enjoy your enhanced audio setup!

For a more detailed guide and visual walkthrough, please watch this instructional video. It provides additional insights and tips to enhance your setup experience.