Back to Shop Córdoba 2Band Ukulele Preamp Battery BoxMSRP -$10.00 USD Replacement battery box for use with 2band ukulele preamp. For use in all 20 series ukuleles. Quantity Add to cart You May Like Replacement Bone Nut – Mini II Bass $9.00 USD Black & Gold Tuning Machines $25.00 USD – $50.00 USD Replacement Bone Nut – Iberia and España Series $11.00 USD Silver & Black Ukulele Tuners (30 Series) $9.00 USD – $36.00 USD