Colored coding ring. Color ring can be changed without unsoldering insert.
Neutrik XXR-1 Connector ID for XX Series Brown
Neutrik XXR-2 Connector ID for XX Series Red
Neutrik XXR-3 Connector ID for XX Series Orange
Neutrik XXR-4 Connector ID for XX Series Yellow
Neutrik XXR-5 Connector ID for XX Series Green
Neutrik XXR-6 Connector ID for XX Series Blue
Neutrik XXR-7 Connector ID for XX Series Purple
Neutrik XXR-8 Connector ID for XX Series Grey
Neutrik XXR-9 Connector ID for XX Series White
Neutrik XXR Connector ID for XX Series Canada Tone Design