Belkin QODE Ultimate Keyboard Case for iPad 2 (2011 model), iPad 3rd Gen and iPad 4th Gen (Black) (F5L149ttBLK) This keyboard case is only compatible with iPad 2, iPad 3rd Gen and iPad 4th Gen with Retina Display Wireless iPad keyboard and protective case in one Fold flat: the keyboard is only 6. Key travel: 1.6 mm; Key pitch: 17.0 mm Three viewing angles with precision-hold magnets for stability Large keys provide a laptop like typing experience.Key size: 14.15 mm x 14.15 mm.Key surface area: 199.9 mm2 Offers 160 hours of battery life between charges