RainSong A-WS1000BK Advanced Series Deep Body Cutaway Acoustic-Electric Guitar, Black Unique Guitar crafted entirely using Carbon fiber/Graphite composites Impervious to humidity and temperature changes Brace-free Soundboard/Body and Projectin Tuned Layering for crystalline detail, warmth and volume of the classic Carbon tone Adjustable, all-graphite neck with composite fingerboard Fishman On-Board electronics with built-in tuner