Alice Guitar Multifunctional Capo with Pick Holder (Acoustic Only), Guitar Tuner, Mod. AE7D/SL-A US This is a multifunctional capo which sonsists of capo, tuner and pick holder. The tuner can adjust the pitch for guitar while using the capo. Meanwhile, it has a place to hold the picks which makes the product more convenient and useful. TUNER: Tuning mode: guitar. Tuning range: B0-B7, A4 Calibration: 440Hz, Tolerance: +/- 1 percent