The Hummingbird Studio Acoustic/Electric updates the 60s classic with a solid spruce top, mahogany neck and body, Grover® Rotomatic® 18:1 ratio tuners, traditional binding, historic Hummingbird™ pickguard, and Fishman® Sonitone™ electronics. Epiphone stands behind every guitar they make with a Limited Lifetime Warranty and Gibson Brands™ Customer Service. <br> A battery is not included. To power your pickup, you will need a 9-volt battery. <br> (Previously called Hummingbird Pro)