3.5mm Female to 2.92mm Female Precision Adapter, 4 Hole Flange PN: P-3.5F-2.92F-131
3.5mm Female to 2.92mm Female Precision Adapter PN: P-3.5F-2.92F-130
3.5mm Female to 2.4mm Female Precision Adapter PN: P-3.5F-2.4F-135