2-Channel Upgrade for Chattanooga Intelect Legend XT Electrotherapy System allows you to easily add two additional channels to your 2-Channel model. Electrotherapy system not included (sold separately). Reviews There are no reviews yet. Be the first to review “2-Channel Upgrade for Chattanooga Intelect Legend XT Electrotherapy System” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.