The KNA UP-2 Universal Instrument Pickup is a great choice for musicians craving the natural sound of their acoustic instrument without a lot of setup. A wood-encased piezo sensor is mounted to a projecting surface of an instrument using a reusable putty. Similar to the AP-2 but with a smaller profile. After installation, control the level of the signal with the included volume pot. Oxygen Music stocks a range of pickups and accessories including the UP-2 universal instrument pickup from KNA.