The K3 Wilson pickup consists of 3 single piezo elements gathered into a Switchcraft 121 female jack. The K3 is picking up more frequencies compared to the K1 and K2 and helps to archive the natural acoustic and clear sound from the instrument very close to the original K4 Wilson pickup. The symmetric position between the strings provides an absolutely great sound for pizzicato and arco playing without feeding back at any level. The pickups can slightly rotate to balance the sound of the higher or lower strings. Special mounting tools and mounting bracket are included with all K3 pickup sets.