Washburn Americana Series all-solid carved top F-style mandolin, active electronics, transparent wine Red finish. Hard-shell case included. The M3SWETWRK-D is based on our popular m3swk-d F-style mandolin but has added pickup and active electronics with bass, treble and volume controls. It also features a beautiful Trans Wine Red finish. Not only does it sound great acoustically but it's the perfect stage performance mandolin. Washburn has been building mandolins since the late 1800S. Whether you're a bluegrass, Celtic or rock player, see how the addition of a Mandolin can broaden your sonic pallet and add a new dimension to your music. For traditionalists, you'll find all the tone & projection you'd expect from our world class instruments.