Xvive Guitar Tuner PT-05 Pedal Tuner Natural 6 String Alloy Steel Features: Chromatic tuning mode with a wide range of tuning options, suitable for guitar, bass and other string instruments. With Pitch button to select the reference frequency, range 436-445Hz(1Hz step). With Flat button to select the reference flat for flat tuning. The Large LED display gives you a clearer tuning view. True Bypass design allows you to quickly switch the signal in and out without latency or loss of tone.