3.5mm Male to 3.5mm Male Precision Adapter PN: P-3.5M-3.5M-194
3.5mm Male to 2.92mm Male Precision Adapter PN: P-3.5M-2.92M-134
3.5mm Male to 2.4mm Male Precision Adapter PN: P-3.5M-2.4M-138
3.5mm Male to 1.85mm Male Precision Adapter PN: P-3.5M-1.85M-142