Newex NuxPG-2 NuxPA-2 electric guitar comprehensive effect device can't be used without power supply, right?

There is a 9V dry battery in it. You can use another battery. Of course, if there is a rechargeable battery in it, you can charge it directly by connecting it to the power supply.

Although the material of this effector is engineering plastic, the texture is good, and now the screen may be quite small, but the fineness and functional content of the display are still very rich and detailed. The metal knob in the middle is good, much better than the overseas version of white plastic. The shape of the nails is also very interesting, and the overall feeling is good. The software on the PC side can be described as realistic and playable in all aspects. The function of supporting importing IR files is very interesting. I chose this one mainly to focus on white-box technology, high sampling rate and three-Jerry introduction, which is also the one I value most. The function and tuning are still being studied and tried, and the built-in tuning is also quite good. This effector is enough for your own entertainment.