Doesn't come with a power supply but does come with its own 9V battery to help you start playing right away. I was surprised by how loud the sound was from this little amp but could be clearer and crisper. Has an overdrive knob. Can take the extra power of hooking up pedals to it but that tends to drain the battery a lot faster, which causes muffled sounds. Doesn't take up a lot of space in my pedal carrying bag. Good for the price.
Brass City, CT