2 1/4 Female to 1/4 Stereo Male 1/4 Y cable This Y cable adapter features one male 1/4 end for stereo audio (TRS) with two female 1/4 ends for audio input from two different channels. Great for playing multiple instruments through one speaker, or routing audio from one source to two different speakers. For use with any instrument with mono or stereo jacks. Plug into your guitar/bass/keyboard and play through more than just one amplifier. This also allows for multiple sound adjustment options for a single instrument. Great for all musicians, as this cable saves time and space.