The back and sides of the Martin 000-12E Koa are built with koa fine veneer, an environmentally conscious, alternative-wood option, made by bonding koa hardwood to an African mahogany core. The top is solid Sitka spruce and the body features a high-gloss finish that brings out the beauty of the koa.The 000 body size produces a guitar with well-balanced bass to treble response. The neck has Martin’s high-performance taper for a fast, modern feel. The 000-12E is fitted with Fishman MX-T electronics with a built-in soundhole tuner that auto mutes the audio output so you can tune up any time without using a pedal. Includes a padded gig bag.