The ROACH is a mini sized 3-way splitter discrete Class-A buffered outputs. Due to its size, only powers via the DC inlet and has a wide acceptance, 9-24vdc. MOSFET input protects if the wrong orientation adaptor is connected, no more damage internally. LED is clear high-bright green. Proudly made in North America. Pedal size (W/D/H): 3.642?(92.51mm) x 1.516?(38.51mm) X 1.220?(30.99mm) DC Adapter (not included): 9-24VDC, Center Pin Negative (Regulated) Power supply only, no battery operation Current draw: @9VDC ~ 4mA Input ~1M / Output ~10K min. load Frequency response: 20hz to 20khz Max output: +9dBm(9VDC), +18dBm(24VDC)