This small, lightweight, yet powerful powered mixer is a real asset! The 4-channel powered mixer features microphone and line inputs on each channel, an equalizer to adjust high and low frequencies, and effect level controls. The master section includes a master EQ to adjust high, mid, and low frequencies, as well as a digital delay effect to adjust reverb and delay. You don't need to buy anything extra if you want to use echo for karaoke. It also has a built-in USB/SD MP3 player. You can play MP3 files from a USB memory stick or SD card, so you can play background music during events without needing a separate player. If you want to connect your portable player or CD deck, there's an AUX input (RCA terminal) for that. Furthermore, if you want to record your performance, there's a REC output, so you can connect recording devices like a portable recorder. This powered mixer is easy to use even for those without special PA knowledge. It's perfect for small-scale live performances, presentations, ceremonies, neighborhood association and office events, mini-lives, and home karaoke, and it's an affordable, all-inclusive powered mixer. 【Main Features】 * 4-channel powered mixer with microphone and line inputs * Powerful 280W (80W continuous) power amplifier * 2-band EQ and FX send on each channel * 3-band master EQ * MP3 playback function from USB memory and SD card * Built-in digital delay effect with adjustable time and repeat ※ This is a listing for the powered mixer only. Please be careful not to make a mistake.