Features: Compact size 4-channel mixer with reverb effect is suitable for home recording webcast karaoke network singing etc. 5V USB supply can be powered by adapter 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) & 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 for condenser microphone; with USB/TF card jack for MP3 input also supports BT connection with your smartphone. Do Not support computer recording software on-line editing. Specifications: Material: Color: Black/ White(optional) Supply: 5V 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 * 7.6cm/ 9.4 * 8.7 * 3in Package Weight: 670g/ 23.6oz Note: product only supports USB disk recording function do not support computer recording. Package List: 1 * Mixing Console 1 * Plug 1 * Cable 1 * User Manual(English)