I am selling this item because I didn't end up using it much, as I mostly recorded guitar using a computer. The instruction manual is also included. Although it is treated as new and unused, please note that it has been opened once to check the operation (it was disinfected and cleaned before being repacked). In the third photo, the serial number has been processed and hidden for safety. Please be assured that nothing is written on the actual product. It will be packaged and shipped in the original outer box (photo 4). It has been stored away from high temperatures and humidity. - Model: GA15II - Brand: YAMAHA - Color: Black - Input Terminals: AUX IN - Adjustment Functions: Drive, Gain, Clean, Volume, Equalization (Treble, Middle, Bass)