L.R. BAGGS ANTHEM PICKUP SYSTEM - The Award-winning Anthem series, featuring patented TRU•MIC technology, seamlessly combines a proprietary condenser microphone with the acclaimed Element pickup to deliver the warmth and fidelity of a studio-mic’d guitar anywhere you perform - The patented TRU•MIC carries the majority of the guitars’ frequency range while the Element Pickup carries the lowest frequencies - The mic is highly feedback-resistant - Noise cancelling microphone technology eliminates any annoying honky or boxy qualities from the inside of the guitar - Soundhole preamp includes volume, mix, phase inversion, battery check, and mic trim controls - Professional Installation Recommended... we do that.