Adaptor: 2x 6.35 mm audio jacks (TROPHY)

Most common use to connect STILO helmet models - SPORT, TROPHY DES, VENTI TROPHY with rally amplifiers - SPARCO IS-110, ZERO NOISE VALIANT or with radio communication systems for Circuit, Rallycross, Autocross (with 6.35 mm audio socket).
Shaft diameter: 6.35 mm

WARNING: This item is not compatible with Nexus type sockets/connectors (7.1 mm). See picture HERE.