Sanwa Direct Speaker with Microphone Built-in Amplifier Speaker For Conferences and Events, Includes 1 Microphone 2 Microphone Inputs, 20W, 400-SP044 [Speaker Section] ■ Frequency Response: 200Hz～15000Hz ■ Speaker Type: Bass Reflex Full-Range Speaker System (Magnetically Shielded) ■ Speaker Size: 6.5 inches (Diameter 163mm) ■ Load Impedance: 6Ω ■ Input Terminals: φ6.3 Standard Jack (for microphone) x 2, φ6.3 External Audio Input x 1 ■ Output Terminals: φ6.3 External Audio Output x 1 [Microphone Section] ■ Frequency Response: 70Hz～14000Hz ■ Sensitivity: 74+-3dB ■ Impedance: 600 Ω ■ Connector: XLR3-pin (Male) ■ External Dimensions: Diameter 53mm x 180mm ※ Condenser microphones for computers cannot be used. ■ 6.3 Standard Plug to XLR3pin Female (2m) XLR3pin, common for dynamic microphones, is used. ※ Not Marshall ・The Marshall logo was personally attached with adhesive. ・The knob dials have been replaced with gold knobs. ・The original black knobs are also included. ・There is some wear and tear, so please refrain from purchasing if you are sensitive to this.