All-acacia ukulele for a warm and full natural sound with active electronics for solid plugged-in performance.The AC-4-EQ is a traditional concert ukulele crafted with an acacia top, back and sides with 1st Gen. Kanile’a bracing system, and a nice satin natural finish that lets you enjoy the tonewood’s beautiful woodgrains. The acacia is paired with a mahogany neck, and a walnut fingerboard and bridge. The AS-4-EQ is also equipped with an active pickup and 3-band EQ for tone shaping when you’re plugged in. The AS-4-EQ Traditional Concert acoustic-electric ukulele also comes setup with Aquila Corde strings.SPECIFICATIONSTop: AcaciaBack: AcaciaSides: AcaciaNeck: OkumeFingerboard: Walnut, 19 fretsInserts: ABS dotsNut: MycartaBridge: Walnut, with black ABS pinsMachine heads: metal, black knobsStrings: AquilaScale length: 381 mm (15″)Total length: 609 mm (24″)Maximum width between upper sides: 152 mm (6″)Maximum width between lower sides: 206,4 mm (8,13″)Minimum width between sides: 127 mm (5″)Width at nut: 38 mm (1 1/2″)Body thickness: 55,6 mm (2,18″) to 68,3 mm (2,68″)Electronics: under saddle pickup, 3-band active EQ (mass, middle, treble), built-in tunerColor: NaturalFinish: Satin