D’Addario Chromatic Pedal Tuner Pops String grounding is recommended to

String grounding is recommended to further decrease noise

Lower latency

we added an EZ Adjust Cam to allow drummers to switch from Accelerator® to Turbo®-style sprockets

it also features the Easy Release Powerclaw Latching System

D’Addario Chromatic Pedal Tuner Pops String grounding is recommended toThe D'Addario chromatic pedal tuner is the perfect combination of innovation, simplicity and style. Housed in a rugged aluminum enclosure, the tuner features fast note detection, superb accuracy, wide calibration range and true bypass wiring with an easily accessible Foot switch. The tuner full color vertical display allows for quick intuitive tuning at home, in the studio or onstage. D'addario electronic tuners are designed by musicians for musicians