Epiphone AJ-45ME Round Shoulder Acoustic/Electric with Sonic Preamp The Epiphone J-45ME has a solid Sitka Spruce top and Mahogany back and sides, with a Mahogany set neck that has a Rosewood fingerboard and Pearloid Dot inlays. Shadow Nano Flex pickup with a Shadow Sonic Preamp in the sound hole that features a Master Volume, Treble EQ, Bass EQ, Phase "Anti-Feedback" switch and a Low Battery Indicator. This guitar also has a bone nut and bridge with Nickel Grover Tuners and a 5-Ply binding which gives this model the class and vintage look that you have come to expect from a guitar of this caliber and history.