A:universal Turbo sim unlock card,compatible for NOKIA,sony ericsson,samsung,motorola etc.prevaing brand mobile phones,about more than 1500 models!

B:S60 series,compatible for most of japanese cell phones.

C: it can work with 3G network when unlock iphone 3G,under full function,any network be ok!

C+: it can work with 3G network when unlock iphone 3G,under full function,any network be ok!it won't be out when travel from one cell tower to another to make the 99% signal back automatically.