width:450-mm ✕ outputs:4 ✕ has-loop-button-function:yes ✕ headphone-sockets:2 ✕ inputs:1 ✕ has-an-effects-section:yes ✕

Allow OR queries (select multiple values per filter)

When disabled: selecting a filter value replaces the current value.
When enabled: you can select multiple values for the same filter (OR logic).