BLU Hero JR S250 Unlocked GSM Dual-SIM Cell Phone (White) Dual-SIM Capability 3.5" Capacitive Touchscreen 1.3 MP camera with video capture Stereo FM radio MP3/MP4 Player Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.