HTC MyTouch 4g Android Unlocked Phone (Black) Blazing fast 3G/4G-enabled, Android 2.2-powered smartphone with 3.8-inch touchscreen and Video Chat capabilities Compatible with T-Mobile's growing HSPA+ 4G network--up to 3 times faster than standard 3G networks 5-MP camera with HD 720p video capture; Wireless-N Wi-Fi; Bluetooth stereo music; 4 GB internal memory plus microSD expansion Up to 6 hours of talk time, up to 288 hours (12 days) of standby time In the box: Unlocked mytouch 4G, rechargeable battery, charger, USB cable, hands-free stereo headset 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.