width:500-mm ✕ number-of-knobs:29 ✕ has-loop-button-function:yes ✕ thickness:52-mm ✕ inputs:4 ✕ headphone-sockets:1 ✕

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).