Unlocked ZTE Z222 Flip Phone With Camera For ATT, T-Mobile and Other Supported GSM Networks. Internet, Bluetooth 2.0+EDR Large buttons Text, Picture, Video & Voice Messaging Mobile Web & Email Bluetooth 2.0+EDR Operates on dual-band GSM 850/1900MHz wireless networks 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.