Thank you for looking! I accidentally bought this, thinking it was a tuner for wind instruments... I don't need it, so I'm selling it to someone who does. There is no box, just the unit itself. The battery that came with it will be included. I just bought it and haven't used it much, so it's in good condition. Analog meter type guitar/bass tuner with auto and manual modes. - Brand: SEIKO - Model Name: SAT10 - Type: Guitar/Bass Tuner - Features: Auto/Manual Mode - Display Method: Analog Meter - Input Terminals: INPUT - Output Terminals: OUTPUT - Power: Battery (details un