... 1.Aluminum alloy 2.Built-in Bluetooth keyboard. 3.make ipad into macbook Aluminum case with wireless bluetooth tablet keyboard Product features: 1 ... ipad 2 /the New Ipad use. 2.Built-in wireless Bluetooth 3.0 keyboard. 3.Modern style designed for ipad , used as ipad case ... keyboard sleep mode. 1,Operating voltage: 3.0-5.0 V 2,Operating current: 5.0 MA 3,Standby current: 2.5 MA 4,Charging ...