D'Addario PWTF-E Tuning Fork Key of E (329.6 Hz)

While electronic tuners are handy, they're certainly not infallible. The D'Addario PWTF-E Tuning Fork has been precisely tuned to E at 329.6 Hertz, providing the perfect reference tone for tuning by ear. This model has been finished with an ergonomic handle for improved comfort and resonance.