Copy and dial sim numbers and manage calls.
Economical: copy 1-12 sim numbers. All GSM V1 system card can be copied. Complementary: Readable and re-writable to any number of different communication operator such as china mobile and china Unicom, strong signal, smooth communication, never miss any call. Never re-power on: when put magicsim card into the mobile and install STK function, it can switch another number automatically without power on the mobile to change card.