The Ibanez IJX150 is a Jumpstart package including a GIORG series solid body guitar. The included guitar is described in Ibanez' marketing materials only as a "GRG series guitar". It is an entry level guitar which has a similar appearance and specifications to the GRG150.
Along with the guitar the package includes a 10-watt amp (IBZ1G), cable, electronic tuner, gig bag, picks and strap. This package was essentially replaced with the IJX200 which was similar except that it included a guitar with dual humbucking pickups.
Specifications for "GRG series guitar" incl. in IJX150 kit