Manufacturer’s description:
The Woody series of pickups may be the easiest path to acoustic bliss, and a wonderful solution for those that don’t need a pickup professionally installed. This pickup pops right in any sound hole from 3.85 to 4.10 inches, and is completely passive. That means you don’t need a battery, and it is ready to plug right into an acoustic amp or mixer. Each pickup in the Woody line is available in 3 different wood finishes, and comes with an attached 14 foot cable.