This is a YAMAHA Powered Mixer EMX5000-12. It's the easiest size to use for a powered mixer. Condition: Although it's 500W, it can be switched between 100W and 300W depending on the scale, making volume adjustment very easy. This is a mixer that even beginners can operate with ease. Size: Approx. 48 x 56 x 16 cm, 100V We have performed as much testing as possible using test cords, a player, speakers, and microphones. We confirmed that sound comes out of the speaker terminals without any issues. Both left and right are okay. Input terminals 1-8 can be used. LINE inputs 9-12 channels are also normal. All inputs are normal. Equalizers for each channel are normal with no crackling. Stereo and monaural switching are both normal. There is some crackling on the ON switches for each channel, but we have removed as much as possible. Please understand that there may be some crackling on other knobs and buttons such as the gain knobs and 26dB buttons. We do not guarantee against crackling. Built-in effects SPX 1 and 2 are both normal. Graphic equalizer is normal with no crackling. There are scratches, so please judge from the photos. We refuse purchases from nervous individuals. Only the AC cord is included. We will ship quickly using bubble wrap and corrugated cardboard. Thank you for your consideration.