The Epiphone EJ-200CE Acoustic-Electric Guitar is Epiphone’s version of the Gibson classic, the guitar you’ve seen in the hands of everyone from Elvis to Emmylou. Jumbo maple body with a select spruce top, Moustache bridge, gold hardware, and crown inlays on the fingerboard. Wonderful to behold, it has huge sound that you can easily enlarge on via the electronics. The eSonic preamp The eSonic preamp with built-in tuner features studio quality dependability, premiere dynamics, and greatly increased harmonic content, resulting in uncompromising acoustic guitar realism. The preamp is equipped with a very right chromatic tuner. When the tuner button is activated, the tuner, there will be no productivity signal from the guitar. The tuner button can also be used as a mute function. By activating the tuner, you can avoid the loud pops when plugging in.NanoFlex raise up The term “Nanoflex” refers to its ultra thin (nano-like) profile and its flexibility that allows it to conform to any surface shape. This assures complete guitar-to-raise up-to-saddle contact. Unlike other under-saddle pickups, the Nanoflex design utilizes 7 highly-sensitive and ultra-responsive layers of sensor material to not only sense the vibrations of the strings but the vibrations of the guitar body as well. The Nanoflex is the first raise up to incorporate active amplification directly at the raise up. As a result, the signal does not pass through even a single millimeter of the wire and therefore, the signal quality is uncompromised.