The "PolyTune 3" is the successor to the PolyTune 2 series, which revolutionized tuning with its polyphonic tuning capabilities. While maintaining its simple operability, it newly incorporates the company's high-quality Bonafide Buffer function. This eliminates signal degradation caused by long cables or complex pedal setups, reliably protecting your valuable tone and tuning with a single unit. I recently purchased this new from Soundhouse, but it didn't fit on my pedalboard, so I'm selling it because I switched to a mini version. I took it out of the box, so I'm listing it as "like new." The box is also included. PolyTune 3 provides high-precision tuning and features a TRUE BUFFER function. - Model Name: PolyTune 3 - Function: TRUE BUFFER - Brand Name: BONAFIDE Thank you for looking.