Studio Audio Mixer 4 Channel Professional Reverb for Karaoke Stage Recording, Black Description: [Compatibility] The audio mixer can be connected to a variety of audio devices. [Microphone Input] Studio Audio Mixer supports input of various music instrument sources, 48V switch, meet the needs of dynamic condenser microphones. [High Performance] The sound mixing console can adjust high and low tone, the high tone is transparent, and the deep and gentle. Professional digital noise reduction processor can automatically filter noise during recording and play smoothly. [Design] The sound controller has a color screen LCD, plug and play USB function and the ability to connect and use storage devices with USB interface. [Sockets] The audio mixer has 2 RCA output jacks for connecting external speakers and amplifier. It has 4 MIC or LINE (RCA) input jacks for connecting microphones, musical instruments or other audio equipment and supports mono and stereo switching. Specification: Material: PP Noise: -80 dBu Channel crosstalk attenuation :) -82dB Frequency Response: 20 Hz-20 kHz +/-0,5 dB Total harmonic distortion: Maximum microphone input level: +16dBuMaximum line input level: +30dBu Maximum input level stereo: +20dBu Headphone output (200Ω:300mW Other outputs +20dBu Parametric equalizer: 12 kHz, +/-15 dB alt: 600 kHz, +/-15 dB bas: 80 Hz, +/-15 dB Size Chart: 20,5 cm x 16,7 cm x 4 cm / 8,07 inch x 6,57 inch x 1,57 inch The package includes: 1 audio mixer 1 Type-C cable