M-Vave MK-300 is a comprehensive digital multi-effects processor designed for both guitar and bass.It features Audio Neural Network (ANN) modeling technology to simulate various amplifiers and cabinets.The unit includes a 3.5" LCD screen and a built-in 5000mAh rechargeable lithium battery.It offers extensive connectivity, including XLR balanced outputs, Bluetooth music support, and a 300-second stereo looper.