Vention 3.5mm Male to 2.5mm Female Audio Adapter – BFBB0 Vention 3.5mm to 2.5mm Features High Sound Quality: Copper conductor with gold-plated surface ensures a better transmission performance and lossless signal. Universal Compatibility: For devices like headphones, audio signal transmission between two devices. Simple Way of Conversion: Directly plug into the mobile phone and MP3, or plug the earphone interface into adapter. Anti-oxidant and Anti-rust: Gold-plated interface to avoid oxidation and affect the sound quality, long-term use, sound quality as original. More audio adapters High Sound Quality: Copper conductor with gold-plated surface ensures a better transmission performance and lossless signal. Universal Compatibility: For devices like headphones, audio signal transmission between two devices. Simple Way of Conversion: Directly plug into the mobile phone and MP3, or plug the earphone interface into adapter. Anti-oxidant and Anti-rust: Gold-plated interface to avoid oxidation and affect the sound quality, long-term use, sound quality as original. High Sound Quality: Copper conductor with gold-plated surface ensures a better transmission performance and lossless signal.Universal Compatibility: For devices like headphones, audio signal transmission between two devices.Simple Way of Conversion: Directly plug into the mobile phone and MP3, or plug the earphone interface into adapter.Anti-oxidant and Anti-rust: Gold-plated interface to avoid oxidation