The NUX MG-300 is a high-performance, multi-functional effects unit that provides a wide variety of effects for guitar playing. It allows you to easily create diverse sounds, expanding the range of your performance. I accidentally ordered a duplicate and had it in storage unused for a while. I opened it for the first time to list it for sale and turned it on once to check that it powered on. See photos 2 and 3. The operation panel is simple, with each knob and switch clearly arranged, making it easy to use intuitively, even for beginners. The color LCD display allows for smooth selection and adjustment of effects. Its compact and lightweight design makes it ideal for live performances and practice. It's easy to carry and can be used anywhere. - Brand: NUX - Model Name: MG-300 - Accessories: AC adapter, instruction manual - Function: Effects unit - Input terminals: INPUT, AUX IN - Output terminals: OUTPUT, SEND, RETURN *Will be bubble-wrapped and shipped in the outer box. Thank you for looking.