1. Go to the Apple App Store or Google Play to download the Soundcore App.
2. Pair your device with Liberty 2.
3. Open the Soundcore App and connect with Liberty 2.
4. Click on the Custom Command button in the lower right corner to enter the Custom Command page.
5. Customize the settings according to your preferences; choose to double-click or hold for 1s to control volume up/volume down, then use the settings to adjust the volume.

Note: Customized commands are not available in mono mode.