iPhone 3GS 32 GB - Unlocked GSM Unlocked 2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 1900 / 2100. (Will NOT work on Verizon wireless or any CDMA carrier, SIM Card required) iOS upgradable to iOS 6.1.3 Battery: Stand-by Up to 300 h - Talk time Up to 12 h (2G) / Up to 5 h (3G) - Music play Up to 30 h Color: Black