From Gibson:

"Turn heads with the J-45™ Studio Rosewood. Hand-built using solid rosewood back and sides and a solid Sitka spruce top, this updated J-45 Studio features a traditional body depth for warm, rich tone. The Advanced Response profile utile neck ensures smooth, easy playability. Available in Satin Natural and Satin Rosewood Burst finishes, the J-45 Studio Rosewood has an L.R. Baggs™ Element Bronze active under-saddle piezo pickup for studio-quality plug-and-play anywhere. Packaged in an included hardshell case for portability, this J-45 Studio Rosewood is ready for the studio and the stage."

Satin Rosewood Burst, Round Shoulder J-45 body shape, Satin nitrocellulose lacquer finish, Sitka Spruce top, Traditional hand scalloped X bracing, Multi-ply top and single-ply back binding, Rosewood back and sides, Advanced response shaped Utile neck, 16” radius Rosewood fingerboard with the Mother of Pearl Dot inlays and standard frets, 24.75" scale length, 1.72" nut width, Grover Rotomatic tuners, With the L.R. Baggs Element pickup system and hardshell case