- Switch between up to 6 cell phone numbers on the fly、 without rebooting cell phone?(must be cloned from original SIM cards first)<br />- English + Chinese STK menu languages (configurable)-?SIM cloning and phonebook software tools included- USB SIM card reader + writer included.- <strong>Note</strong>: if you are new to SIM card cloning、 DX recommends the new 2008-Edition 128K MagicSIM package for higher compatability and more advanced STK features.                                                                                                                                Dimensions: 0.98 in x 0.59 in x 0.05 in<br />Weight: 1.76 oz