Feature:1. Mono Operation: The mini audio mixer is a mono mixer with 4 channels input and 1 channel output.2. Simple Adjustment: The volume of each input channel can be adjusted individually, and high sound quality can be produced at the maximum output level.3. Excellent Performance: Ultra low noise 4580 operational amplifier, no distortion and easy to set up, with excellent audio performance.4. 1/4in TS Input and Output: 1/4in TS connector is used for input and output connection, wiring is simple and easy to adjust.5. Compact Format: Metal shell structure audio mixer, small and compact, very suitable for home recording studios or small clubs.Specification:Item Type: 4 Channel Line MixerMaterial: IronColour: BlackProduct Adapter: 50/60Hz 12V/1A (EU Plug 100-240VAC)Input: 1/4in TS connectorMinimum Impedance: 4.7kMaximum Input Level: +16dBuOutput: 1/4in TS connectorImpedance: About 80Maximum Output Power: +16dBu.Package List:1 x Mixer1 x Power Adapter1 x User Manual