Motorola W510 GSM Unlocked Flip Cell Phone - Black This unlocked cell phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. Quad-band GSM cell phone compatible with 850/900/1800/1900 frequencies plus GPRS/EDGE data capabilities 1.3-megapixel digital camera with video capture; MP3/video player; Bluetooth connectivity for handsfree devices and stereo music streaming CrystalTalk background noise reduction; MicroSD memory card slot; access to instant messaging Up to 7.5 hours of talk time and 350 hours of standby time 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.