GA-50, an analog meter display tuner for guitar and bass. It has hardly been used. Batteries are included, but I think they have little charge left. - Model Name: GA-50 - Type: Guitar/Bass Tuner - Functions: Tuning fork function, microphone input - Accessories: Instruction manual, box - Display Method: Analog meter - Output Terminals: OUTPUT - Input Terminals: INPUT Thank you for looking. Thank you!