Compact and battery-powered Blackstar FLY guitar amplifier. - Brand: Blackstar - Model Name: FLY - Controls: GAIN, VOLUME, EQ, DELAY, TIME - Input Terminals: INPUT, AUX IN, HEADPHONE - Power: AC adapter / 6 AA batteries - Included: AC adapter I purchased this used and used it for about six months. I am selling it because I no longer use this amplifier. There are no issues, such as scratchiness in the volume control.