6-channel signal input and 1-channel stereo signal input 88 digital effects, built-in Bluetooth, digital display U disk player 1 channel independent recording output and monitoring port Low noise, high-precision microphone preamplifier, good sound quality Balanced microphone XLR input and balanced line TRS input 3-section channel equalization LED level display MP3 playback module 48V phantom power supply Equipped with headphone monitoring interface TYPE-C DC 5V power input