1. R-SIM 15 has the R-SIM Dongle upgrade function of the intelligent cloud, which can carry two sets of unlocking programs at the same time. 2. The dual-core CPU dual programs are R-SIM15 and R-SIM15 PRO, respectively, which can be upgraded to the latest unlock card program by R-SIM Dongle in the cloud. 3. No need to restart, no need to switch on and off, no flight mode. 4. No need to remove the card, no need to deactivate the operation, automatically activate the unlock. 5. Dual CPU and hand-clip design makes R-SIM compatible for unlocking almost all models such as iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone X, iPhone XS, iPhone 8 & 8 Plus, iPhone 7 & 6.