AP-2 is an ideal stick-on guitar pickup for acoustic musicians looking for an easy, effective solution to bring their sound to an amp and control volume from the stage. In addition to being a surface-mount guitar pickup, AP-2 can be used for harp, drums, and percussion. Players can control their output signal while onstage or in the studio, right from the pickup-mounted volume knob. The piezo element is encased in laminated birch with an elegant and stylish maple top while retaining lightweight assembly to achieve maximum tonal sensitivity. AP-2 has a passive design that reproduces the natural sound of the instrument with no need for a battery. The pickup comes with a double-sided adhesive disc and enough PowerTack adhesive for multiple applications, and a detachable 1/8" to 1/4" cable that allows the pickup to remain in place during storage.