A:Answer Thank you for your interest in the LG LG XBOOM Speaker System with Karaoke Creator (RK7) model. To turn off the echo mode on the LG RK7 speaker, you need to use the remote control. If you don't have one, you can purchase a compatible replacement remote control such as AKB74955321. With the remote control, you can easily navigate the speaker's settings and turn off the echo mode. You can download its owner's manual through this link for more information: https://www.lg.com/us/support/product/lg-RK7.DUSALLK. ^Cris