width:870-mm ✕ number-of-knobs:45 ✕ headphone-sockets:2 ✕ has-loop-button-function:yes ✕ height:419-5-mm ✕

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).