Sony Ericsson J300A Unlocked Cell Phone with MP3/Video Player-U.S. Version with Warranty (Plucky Pink) 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. Dual-band GSM cell phone compatible with 850/1900 frequencies and GPRS data capabilities Slim candybar-style phone for voice, email, and text and instant messaging 12 MB internal memory with no expansion; store up to 500 contacts; speakerphone Up to 7 hours of talk time, up to 300 hours (12.5 days) of standby time