BBE STINGER MODEL 601 pedal-type effects unit, yellow color, DC power compatible. - Model Name: STINGER MODEL 601 - Brand: BBE Sound Inc. - Color: Yellow - Input/Output Terminals: Input x 1, Output x 2 - Power: DC Power - Features: Pedal-type guitar effects unit - Specifications: Input Impedance: 1MΩ, Output Impedance: 1kΩ This is a BBE STINGER guitar effects unit. As you can see from the images, there is a general feeling of use, with scratches and dirt visible. Everything is as is, so please understand. I am also posting on other sites. I would appreciate it if you could leave a comment before purchasing. Thank you.