<p>Designed to connect a 3.5mm Cable and covert it to a 6.35mm plug. Used with Mixers and music applications. It can connect earphones and headphones, electric pianos, guitars, and other instruments, mixers, and specialist audio, speakers, microphones or Phones, MP3 players into amplifiers. <p> <b><p>Specifications</b><p><p> -Input 3 Conductor Stereo 3.5mm (1/8 inch) Jack<p> -Output 3 Conductor Stereo 6.5mm (1/4 inch) Plug