Features: 4-channel sound card mixing console with 2 XLR/TRS combined mono MIC/LINE input jacks and 2 TRS 2 RCA stereo input jacks. With input gain, 3-band EQ(HIGH/MID/LOW) control knobs and volume faders; 16 DSP multipurpose effects, fit for daily use at most occasion. The built-in 48V phantom power is suitable for power supply to condenser microphone directly; with 3.5mm high-definition headphone output port for accurate monitor and quiet practice. Supports MP3 player function and with MP3 main control keys for easy operation, also supports BT connection with your mobile device; with sound card, can also connect with PC directly. Compact size design, portable and lightweight; and DC 5V low voltage power supply, can be powered by computer/5V power bank/USB/DC adapter, very convenient to use. Suitable for recording, online live performances, karaoke singing and conference room, a great assistant for guitarists, singers, music lovers and so on.