TC Electronic - Polytune Mini

Excellent condition. Ultra-compact polyphonic tuner gives you fast, accurate tuning and a high-quality tone tool in a single unit. Quickly get in tune with polyphonic, chromatic and strobe tuning modes 

Built-in all-analog BONAFIDE BUFFER circuitry preserves your tone through long cable runs and convoluted pedal boards

Polyphonic tuning lets you tune all your strings at once