Dunu DC-12 DC-16 DC-11 Plug Adapter 3.5mm Male to 2.5mm Female (6.35-3.5 4.4-2.5) for Music Player Amplifier
DC-11:3.5mm Single-ended Male -2.5mm Balanced Female Plug Adapter
DC-12: 4.4mm Balanced Male -2.5mm TRRS Female Plug Adapter
DC-16: 6.35mm Male -3.5mm Female Plug Adapter