Samsung S5620 Monte Unlocked Quad-Band GSM Phone with 3 MP Camera, Wi-Fi, GPS, E-Mail, Stereo Bluetooth--International Version With Warranty (Gray) 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. Unlocked Quad-Band cell phone compatible with 850/900/1800/1900 GSM and 3G HSDPA 900/2100 plus GPRS and EDGE data capabilities. 3 megapixel fixed focus camera; Smile Shot; QVGA video recording at 15 fps; video call camera; 227MB integrated memory; hot-swappable microSD card slot (up to 16GB) in a Latest TouchWiz UI, Smart Unlock. Wi-Fi; GPS receiver with A-GPS; Bluetooth 2.1 with A2DP; standard microUSB port; 3.5mm audio jack; Accelerometer for screen auto rotate and turn-to-mute; FM radio with RDS; social networking integration  Facebook, MySpace and so on. Up to 9 hours of talk time, up to 780 hours of standby time.