Roger Mayer Kuro Kage Dual Band Synergy Series Controls: High Band Drive - High Band EQ - Low Band Drive - Low Band EQ - Mix - Output. Bypass Switch: We only use USA Carling Switches considered the best. LED: Indication of status of the unit. Hard Wire or 2 Buffered Outputs essential for trouble free interfacing for all situations. Easy Battery Access just slide the cover back to reveal the battery. Could not be faster.