TC Electronic Polytune Poly-Chromatic Tuner.
From TC Electronic: "PolyTune - Tune all strings simultaneously. New chromatic strobe tuner - 0.1 cent tuning accuracy. New bigger and brighter LED display with ambient light sensor. Drop-D and capo tuning modes. True bypass with silent tuning. DC output for powering other pedals."
Deposit required, refunded upon return.