Specification: Name:7-channels mixing console audio mixer;  Color:Black;  Noise:-80dBu;  Channel crosstalk attenuation:>-82dBu;  Frequencty response:20Hz-20KHz+/-0.5dBu;  THD+N:<0.03%at1Khz;  Mic Max Input Level:+16dBu;  Stereo Max Input Level:+20dBu;  Earphone Output:200n 300mW;  Equisization;    Features: 1. USB function.  2. 7 channel mixer.  3. Built-in Bluetooth control.  4. 3-band EQ on all channels.  5. Built-in digital delay echo effect processor.  6. Console and AUX paths plus effects.  7. Individual gain, bass, mid hight, AUX, controls.  8. Stereo RCA outputs for recording.  9. One AUX output.  10. Main slide control(L+R), phones.  11. Individual echo, peak LED on each inputs.  12. 48V phantom power for condenser mics.  13. Processor MP3 Player.    Low:80Hz, 15dB;  MID:2.5KHz,+/- 15dB;  HIGH:12kHz, 15dB;  Gain Control:Mic Input: +10dB to -60dB;  Line Input:+10dB to -4dB;  Max Input Level:+22dBu;  Plug:US/EU;  Size:32x23.5x3.8cm;    Package Include: 1 x Audio Mixer;  1 x Power Cable Adapter; 1 x User Manual