Nokia 5800 XpressMusic Unlocked Phone with U.S. 3G,  GPS with Free Voice Navigation, Wi-Fi, and 4 GB MicroSD Card--U.S. Version with Warranty (Black) 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. Touchscreen multimedia phone with audio and video playback, integrated surround sound speakers, and included 4 GB microSD card (up to 16 GB expandable) GPS with free Ovi Maps navigation application; 3.2-megapixel camera/camcorder; Bluetooth stereo music; Wi-Fi connectivity; access to e-mail and instant messaging Up to 4.2 hours of talk time, up to 336 hours (14 days) of standby time What's in the Box: handset, 4 GB microSD card, battery, charger, music headset, connectivity cable, video out cable, stylus, stand, user guide, quick start guide