Samsung SGH-i627 i627 Unlocked GSM PHone Slider phone with full QWERTY keyboard; powered by Windows Mobile 6.1 for push email and Office document editing Tr-band 3G and quad-band GSM for global roaming; compatible with AT&T Navigator GPS, Video Share, AT&T Mobile Music, and more 3-megapixel camera/camcorder; Bluetooth stereo music; MicroSD expansion (to 8 GB); access to instant messaging Up to 6.5 hours of talk time, up to 288 hours (12 days) of standby time