TOOGOO(R) Gold Plated 3.5mm 1/8Inch Male to 6.3mm 1/4Inch Female Stereo Audio Jack Adapter 3.5mm stereo to 6.3mm (1/4in) mono adapter Ideal when you need to adapt a 6.3mm headphone mono plug to connect with a 3.5mm stereo jack for sound cards, MP3 players, portable CD players, etc Easily connects with karaoke microphone for singing through your computer or records music of electric guitar into the computer via the adapter Durable copper made with a solid connection Connectors: 3.5mm stereo male to 6.3mm (1/4in) female