Sadly, we do not offer support in Finnish, but I hope I understood your questions correctly.
When you have 2 JBL Charge 3 speakers, you can connect the two by using the JBL Connect feature. Standard, they would then play in Party mode, in which both speakers would play the same sound. By using our mobile JBL Connect App, you can change this, and set the pair to play in Stereo sound, basically getting a left and right channel.
I hope this answered your question? If not, please feel free to send us an email on firstname.lastname@example.org
Date published: 2018-11-20