This is the TC Electronic Polytune Clip. I purchased it new and have used it about 5 or 6 times. I no longer have the box, but it's in excellent condition with minimal signs of use. I will ship it with bubble wrap and cardboard for protection. The following is a product description from Soundhouse: The clip-on version of the PolyTune, a polyphonic tuner that revolutionized the tuner world, is here. The PolyTune Clip is more than just a change in shape; it features functions and design unique to clip-on tuners, allowing for quick and highly accurate tuning. * Clip-on tuner equipped with PolyTune technology proven in the pedal version * Polyphonic tuning compatible * High-precision strobe tuner mode with ±0.02 cent accuracy ■ Equipped with 3 modes The PolyTune Clip has three tuning modes. In addition to polyphonic tuning, which allows you to tune all strings simultaneously, you can also choose between a general chromatic tuner mode and a strobe tuner mode with ±0.02 cent accuracy. You can change the display method to suit your purpose and preference. ■ Dressed To Impress The PolyTune Clip has been designed to be unobtrusive to the guitar and player when installed, while still offering top-level performance. The main unit is smaller than the pedal version of the PolyTune, contributing to longer battery life. ■ Automatic display rotation function The PolyTune Clip is equipped with an automatic rotation function familiar to smartphones and tablets. The display orientation is automatically adjusted regardless of the installation direction, right or left, without the need for manual settings or operation. * Adopts the latest generation polyphonic tuner algorithm * Strobe tuner mode with ±0.02 cent measurement accuracy * Highly visible, high-brightness display * Automatic rotation function that changes the display according to the orientation * Elegant and robust design * High-quality stainless steel clip * Flat tuning and capo mode compatible * Double-tap the display mode button to switch display modes. * Reference pitch A4=435 - 445Hz (in 1Hz increments)