Product details:

TC Electronic PolyTune 3 Polyphonic Tuner Preserve your cool tone even when using long cable runs with the powerful TC Electronic PolyTune 3! This polyphonic tuner features a switchable analog buffer that improves your tone for long cable runs. The pedal offers Chromatic Mode for standard tuning and Polyphonic Mode for tuning all strings simultaneously. It also supports capo and Drop-D tuning modes.