i have two power speakers that use red & white usb jacks (male and two female jacks that lead to my speaker)

[2SKOOLU2]

All I have not tried is a stereo mixer. that can play one song through both speakers at the same time. HELP!

[title edited (changed uppercase sentence to lowercase) - - shouting - - Moderator]

 

[Alabalcho]

There are no "red and white USB jacks", most probably you have standard RCA connections. If you post a picture of what you have, someone could help.

What is the source of the music?