Features: Compact size 4-channel mixer with a sound card, is suitable for home music recording, webcast, karaoke, network singing, etc. DC 5V micro USB power supply, can be powered by power adapter, power bank or computer, super convenient to use.  With 2 MIC/LINE (TRS & XLR 2-in-1) mono input jacks for connecting microphones or musical instruments; 2 types(RCA & TRS) of stereo input jacks can be used to connect line-level instrument such as electronic keyboards and audio equipment.  With 2 RCA outputs (L & R) to connect external recorder; 2 TRS stereo outputs(L & R) to connect speaker or amplifier; and one 3.5mm headphone output to connect headphones.  With GAIN，HIGH(treble tone), LOW(bass tone), PEAK control knobs, allowing you to modulate more excellent sound effects; effect access buttons and ST/USB input signal switch button for quick operation.  Built-in +48V phantom power for condenser microphone; with USB/TF card jack for MP3 input, also supports BT connection with your smartphone.   Specifications: Material: Plastic;  Color: Black/ White(optional);  Power Supply: DC 5V;  Power Adapter: 100-240V input;  Item Size: 16 * 18.5 * 5.5cm/ 6.3 * 7.3 * 2.2in;  Item Weight: 445g/ 15.7oz;  Package Size: 24 * 22 * 7.5cm/ 9.4 * 8.7 * 3in;  Package Weight: 650g/ 22.9oz;   Note: The product only supports USB disk recording function, do not support computer recording.   Package List: 1 * Mixing Console;  1 * Power Plug;  1 * Power Cable;  1 * User ManualManual