The Google Home app once again allows you to adjust the volume on multiple speakers simultaneously

The Google Home app has restored multi-speaker volume control, which was previously removed due to a lawsuit with Sonos. Users can now adjust the volume on multiple speakers using the app or voice commands.

Here's What We Know

Users can now use Google Assistant voice commands to control the volume of groups. Commands such as "Hey Google, turn it up" (which increases the volume by 10%) or "Hey Google, set volume to X%" will smoothly adjust the audio output on all connected devices.

Google has also hinted at further improvements to group volume control and plans to integrate it directly into Android smartphone lock screens and smart displays such as the Nest Hub.

Source: Android Authority