K&K Sound Twin Spot External PickupThe Twin Spot is a two head piezo transducer that can be used to amplify a wide variety of instruments, including guitars, saz, oud, bouzouki, balaleika, cello, dulcimer, bongos, and many more. Positioning the pickup heads at two spots results in a more balanced sound structure and a broader frequency range. The small heads are only 1 2 inch in diameter, allowing them to be installed unobtrusively and in hard to reach areas of an instrument.