The Award-winning Anthem™ series, featuring the patent-pending TRU•MIC technology, seamlessly combines a proprietary condenser microphone with LR Baggs' acclaimed Element pickup to deliver the warmth and fidelity of a studio-mic’d guitar anywhere you perform.At the heart of the Anthem is a revolutionary microphone engineered to capture a dynamic studio-mic’d sound for any live performance. The TRU•MIC mounts to the underside of the bridge plate and hovers just 3 mm above its surface to take advantage of the PZM or “boundary” effect. This proprietary mounting system, combined with noise cancellation, frees the mic to perform as if it were outside of the guitar in a studio and maintain remarkable feedback suppression for the stage. The result is a balanced frequency response with excellent clarity for the purest sound you have ever heard amplified. They have paired the Element pickup with the TRU•MIC to provide solidity and punch for low frequencies.LR Baggs Anthem Features:No-cut preamp/control unitIncludes TRU•MIC and Element pickupMix control for mic and pickup settingsPhase inversion for minimizing feedbackMaster volumeMic level controlMulti-segment battery checkBattery life: 170 hours, single 9v LR Baggs Anthem Internal Tru-mic Acoustic Guitar Microphone/Element Pickup System.