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//LOW) control knobs and volume faders; 16 DSP multipurpose effects fit for daily use at most occasion. built-in 48V phantom is suitable for supply to condenser microphone directly; with 3.5mm high-definition headphone output port for accurate 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 5V low voltage supply can be powered by computer/5V bank/USB/ adapter very convenient to use. Suitable for recording online live performances karaoke singing and conference room a great assistant for guitarists singers lovers and so on. Specifications: Model: T4 Supply: 5V Item Size: 16 * 24 * 7cm/ 6.3 * 9.4 * 2.8in Item Weight: 818g/ 1.8lbs Package Size: 28.5 * 20.5 * 9.5cm/ 11.2 * 8.1 * 3.7in Package Weight: 1047g/ 2.3lbs Package List: 1 * Mixing Console 1 * USB Cable 1 * Adapter 1 * User Manual(English)