Hamlet iDualSim mini, MoreCardpro for iphone with Bluetooth 4.0, Active SIM Card Adapter BEFORE BUYING YOU SHOULD NOTICE: Compatible With- Apple product(iOS7.1,such as iPhone 7/SE,6S/6 plus/iPhone 6/5S,5C,5/4S, iPad 3,4,Air,Air2, iPad Mini,Mini2,Mini3, iPad Touch 5/6 Network Require- for your iphone(with sim card):GPRS, 3G, 4G, GSM will be Ok;but for the other sim card(you gonna insert to the iDualSim) must be GSM network. Operating App- morecardproon the iphone app store.(Which is upgraded version in order to get the goal of 100% incoming call, wont miss the CALL & MSM. About iDualSim- of course, the more the merrier. But now one iDualSim can only connect with one APP on iphone.