Key benefits Flexible compatibility for amplifiers and headphones by converting between 635 mm and 35 mm jack sizes Durable construction and precise workmanship for long service life Anti interference design helps minimize noise and preserve signal quality Made of solid brass copper to minimize signal loss and maintain clear audio Product features and specifications Headset adapter: used to convert the audio signal input interface and can be used for the amplifier or as an amp to headphone adapter Amp to headphone adapter: durable material and workmanship provide a maximum service life; headphone jack converter Headphone jack converter: adapts a single 635mm male to 35mm antiinterference design; suitable for amp to headphone use Headphone adapters: this 635 to 35 audio jack converter is made of solid brass copper, ensuring minimal signal loss; amp to headphone adapter Use scenarios Home audio or desk setup: connect a 635 mm output from an amplifier to a 3.5 mm headphone input for quiet listening without changing equipment Recording or editing studio: link studio monitors or headphone outputs with different jack sizes to your audio interface or mixer for accurate monitoring Live practice or travel: pair portable amplifiers with headphones by converting between 635 mm and 35 mm jacks to suit available gear without replacing cables