1、INDEPENDENT MP3 VOLUME CONTROL: Using USB input to connect device to play MP3, and the MP3 part adopt independent volume control 2、4 CHANNEL 3 BAND: 3 band EQ on all channels, high control adjust high frequency range, center control increases or decreases mid frequency, low control increases or decreases gain in bass range 3、WIDELY USES: Mixing console are used for studio recording of compact studio system, DJ equipment, live streaming and more 4、DURABLE METAL MATERIAL: Audio mixer sound board is made of metal material, easy to conduct electricity, shiny, sturdy and durable 5、EXCELLENT PERFORMANCE: Noise is ‑80dB, SNR more or equal than 82dB, frequency response is from 20Hz‑20kHz±0.5db, possess high performance 1 x Mixer1 x User Manual1 x Plug Item Type: Mixing ConsoleMaterial: MetalColour: BlackProduct Power Supply: US Plug AC100-240VNoise: -80dBFrequency Response: 20Hz-20kHz± 0.5dbTHD: ≤ 0.03% at 1KHzSignal to Noise Ratio: ≥82dBMicrophone Maximum Input Level: 16dBuCircuit Maximum Input Level: 30dBuStereo Maximum Input Level: 20dBuHeadphone Output: 200Ω, 300mWOther Output: +20dBu