NUX guitar amplifier with drum function and effect controls. How about it for practice? This is the first model, which runs on either batteries or an AC adapter. The main unit has many scratches, but the functions of a small amplifier have been confirmed to work. I have not tested the connection to a computer. The box and warranty card are missing. The instruction manual (ver. 2) can be downloaded from the website. The included AC adapter is not the original one. - Brand: NUX - Type: Guitar Amplifier - Included Accessories: AC Adapter - Features: Drum function, Effect control - Input Terminals: 1/4 inch input - Output Terminals: Headphone output, AUX input