Input Impedance: 1M ohm Output Impedance: 600 ohm Power Connector: 9Vdc, center negative, 2.1mm x 5.5mm Operating Voltage: 4V to 18V (nominal 9V) Maximum Voltage: 20Vdc Reverse Battery Protect: yes Current Consumption: 8mA Estimated Battery Life: 75 – 100 hours continuous use Dimensions: 4.875” Width x 3.875” Depth x 1.375” Height Weight: 1 pound FxLink Connector: 1/8” stereo FxLink max Voltage: 3.3Vdc Shield Tip: Mid Boost Shield Ring: Boost Both: Mid Boost (override) ROHS Compliant: Yes – all components, finishes, processes Agency Approvals: None required