Compact and multi-functional YAMAHA GA-15II guitar amplifier. Operation has been confirmed. Used only a few times and stored at home. - Brand: YAMAHA - Model: GA-15II - Controls: Gain, Volume, Treble, Middle, Bass, AUX IN - Speaker: Built-in speaker - Terminals: AUX IN terminal - Design: Compact design - Color: Black - Power: AC power Thank you for viewing.