The Seymour Duncan SA-3HC "Woody HC" is a quick-mount, passive, magnetic soundhole pickup in a dual coil humbucker configuration. This pickup is a moderate output, instant-mount, hum canceling pickup housed in maple cover and double potted. The tone is warm and rich with no 60-cycle hum. Great for strumming and delicate fingerstyle playing. Includes studio-quality 14 foot 1/4" cable. For optimal tone, plug the SA-3HC into an acoustic guitar amplifier, P.A., or mixing console. Designed to work with steel string acoustic guitars with sound holes between 3.75" and 4.00". Does not work with nylon string guitars.