The product is compatible with most audio devices, power amplifiers, preamplifiers, projectors, electronic screens, and infrared receivers and transmitters; Suitable for DVD Bluray players, car audio systems, DACs, CD players, game consoles, AV receivers, digital recorders, headphones, computer sound cards, high fidelity systems for fever rated home theaters, etc Pure copper wire core provides high-quality signal connection; The gold-plated copper material connector ensures a solid and high-quality connection between connecting devices, accurately transmitting high-quality, delicate, clean, natural, and pure audio sound with fidelity and clarity, and no jitter in mono format signals; Pure copper core conductors can enhance internal noise suppression capabilities, provide clearer and bass, reduce distortion and signal loss. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color: As Shown Material: plastic Package Contents: 2 x 3.5mm Mono Extension Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.