Here's a like new in box / mint condition TC Electronic Polytune 3 Polyphonic Tuner Pedal with Buffer. Comes with original box with user manual, and etc. 
 
TC Electronic Polytune 3 Polyphonic Tuner Pedal with Buffer:
 
TC pushes the envelope yet again for what's possible in a tuner pedal! The TC Electronic PolyTune 3 is faster, more dependable, and more intuitive than ever, boasting accuracy within 0.1 cents and a no-nonsense approach to guitar and instrument tuning — strum all strings* to see which are out of tune at a glance, or tune up one string at a time. Thanks to its built-in BonaFide Buffer circuitry (switchable to true bypass), PolyTune 3 can now even improve your tone for long cable runs. This means you get the treble and transient response that's much closer to plugging directly into an amp. But that's not all that's improved in the TC PolyTune 3. Alternate tuning modes make it fast and easy to explore new ways to craft your art, even in the middle of a frantic set. And an improved auto-dimming LED display makes tuning more comfortable in any environment, indoors or out.
 
FEATURES:
 
The most advanced PolyTune yet
Built-in BonaFide Buffer preserves your tone for long cable runs
Switchable true bypass option puts you in charge of your signal path
Alternate tuning modes make it fast and easy to explore open/slide tunings
Always On option (Buffer mode only) provides continuous tuning feedback as you play
Save time tuning all strings at once*, or tune string by string — PolyTune 3 adjusts automatically
Precise strobe tuner is accurate to within 0.1 cents — great for double-tracking
Fast chromatic tuner (+/- 0.5 cents) automatically detects the note you're playing
Auto-dimming LED display is easy to read on dark stages or in direct sunlight
Designed and engineered in Denmark
Requires a standard 9V power supply (not included)
 
SPECIFICATIONS:
 
Type:Polyphonic, Chromatic
Format:Pedal
Display Type:LED, Strobe
Reference Pitch:Selectable
Accuracy:0.5 cent (chromatic), 0.1 cent (strobe)
Tuning Modes:Capo, Drop Tuning, PolyTune
Inputs:1 x 1/4" (instrument), 1 x USB Mini-B (firmware updates only)
Outputs:1 x 1/4"
Bypass Switching:True Bypass or Buffered
Power Supply:In/Out jacks, 9V DC power supply (sold separately)
Power Usage:100mA
Batteries:1 x 9V
Height:2.0"
Depth:4.8"
Width:2.8"
Manufacturer Part Number:966130001