BLU Samba W Q170W Unlocked GSM Dual-SIM Cell Phone (Silver) Unlocked cell phone compatible with any GSM carrier worldwide. This unlocked cell phone is compatible with GSM carriers like AT&amp;T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. Unlocked Quad-Band GSM Dual SIM cell phone compatible with 850/900/1800/1900 mHz frequencies (Both SIMs) plus GPRS/EDGE data capabilities. Wi-Fi; Bluetooth; 1.3MP Camera; QWERTY Keyboard; Social Networking Integration; Stereo FM radio; MP3 player; MP3 ringtones and MicroSD slot upgradeable up to 32GB. Games; Browser WAP 2.0/xHTML; SMS; MMS; Organizer; Internal Memory 128 MB + 64 MB RAM and MicroUSB.