100% brand new and high quality Features: Ultra low noise sound mixer with 8 inputs and 2 outputs. Each input channel with separate volume control knob. And with 2 knobs for adjusting the output volume. Support MIC or LINE (4CH stereo & 8CH mono) input. Compact size and metal shell, portable and durable. Dual power supply: power adapter (included) and 9V battery (not included). Specifications: Material: metal Optional Power Adapter: EU/UK/US Plug Size: app.148x85x65mm/5.83x3.35x2.56in Color: Black Quantity: 1set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Sound Mixer 1 x Power Adapter(other accessories demo in the picture is not included.)