Alvarez ukuleles have been carefully designed to bring players an open-sounding and responsive instrument with good projection, rich volume and fine tone. All Alvarez ukuleles are constructed with a dovetail neck joint for optimal strength and transfer of energy between the neck and body. The bracing design is a modification on traditional fan-style braces to optimize response. This response is also aided by a solid “slotted” rosewood bridge, which enhances projection and helps to make string changes easier and quicker. The AU66TCESHB is fitted with our AUE 20 EQ with built in tuner. Other appointments and features include quality-seasoned tonewoods, real bone nut and saddles, mahogany neck, rosewood fingerboard and premium tuners. Specifications Top Wood: Solid African Mahogany Body Finish: Shadowburst/Gloss Back And Sides Wood: African Mahogany Shape: Tenor Neck: Mahogany Bridge: Techwood Fingerboard: Techwood Nut And Saddle: Real Bone Tuner: Chrome Open Gear Strip Binding: Black ABS Strings: Aquila Nylgut Bracing Systems: Single Cross Brace Neck Joint: Dovetail Neck Meets Body: 14th Fret Number Of Frets: 18 Pickup / Eq: AUE 20 EQ with Tuner Overall Length (Mm): 672 Body Width (Mm): 230 Body Depth At Heel (Mm): 65 Body Depth At Base (Mm): 79 Scale (Mm): 430 Scale (Inches): 16.9375 Number Of Frets: 18 Nut Width (Mm): 35 Nut Width (Inches): 1 3/8