ZAGG ZAGGkeys PROplus, Apple, iPad 2/3/4 Gen, Aluminum, Aluminum, Wireless, Bluetooth ZAGG ZAGGkeys PROplus. Brand compatibility: Apple, Compatibility: iPad 2/3/4 Gen, Product color: Aluminum. Connectivity technology: Wireless, Device interface: Bluetooth. Power source: Battery, Battery type: Built-in battery. Mobile operating systems supported: iOS. Width: 9.65" (245 mm), Depth: 7.44" (189 mm), Height: 0.276" (7 mm)