Samsung T359 Smiley Unlocked Phone with QWERTY Keyboard and 1.3MP Camera - Unlocked Phone - US Warranty - Black/Blue Latest in Noise Assassin technology delivers improved noise elimination performance and an integrated digital approach to wind reduction Up to 4.5 hours of talk time, up to 216 hours (9 days) of standby time Echo cancellation and wind noise reduction Bulk Pack includes Bluetooth, Ear-Hook, Ear-Gel and Quick Start Guide Multipoint support for simultaneous connection to two audio sources, including a PC. 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.