Product Description Features: 1. 3.2`` 65.5K-pixel color LCD display. 2. In English & Chinese are optional 3. With AES digital audio input support. 3. 255MHz, 96kHz sampling rate, 24 bit AD/DA conversion. 32 bit DSP chip processor; 4. PC device with professional to control operation. Provide USB prot 5. The front with manual sound chose Input, 4 super screaming inhibit function keys F. B - EX (loop is repeated buttons) 6. Has 5 kinds of vocal Eff. Model for user, can be loop call-out, each modes can be adjust parameter. 7. 21 memory functions, of 10 preset & 10 ' self eff, all parameters to AUTO save 8. Each input has H/L cut, 7 band EQ. 9. Channel output has 4 balance & unbalance, can be flexible with the power op-AMP (When the MIC into the output, Auto-cut disco & songing. Signal AUTO attenuation, proportion is adjustable) 10. Each input & output are has freq, 6 band EQ, limiter, sound chose, Mix rate gain delay etc. K field applicable