The Schertler AG6 compact pickup is designed to fit inside the guitar's sound hole. It is equipped with a volume control and has an external input with separate volume control for connecting a second pickup or a mic. Sound from both pickups can be blended using the volume controls to create just the right sound for a particular performance or recording. The AG6 system is supplied with an internal Jack cable for fixed installation on the instrument. An external Jack cable is available separately. Two new microphones will also be available for use with the AG6: an electrodynamic moving coil contact microphone and an external condenser microphone. The Magnetico works different than any single-coil or humbucker type magnetic pickups. The Magnetico has very balanced sound between the strings and gives back the response of the guitar exactly. We can say the Schertler magnetico is the best soundhole pickup we have ever heard compared to LR Baggs or Fishman. We offer 8 days money back warranty for the AG6 and its accessories.