RCA A1 4.7" 3G Unlocked Dual SIM, Android 4.1 US Warranty This unlocked cell phone is compatible with GSM carriers like AT&T, T-Mobile, Net10, Simple Mobile, Consumer Cellular, Walmart Family Mobile, and Pure Talk USA. No contracts and data plans required; HSPA 3G Smartphone running Android 4.1.1 (Jelly Bean), with 4.7-inch multi-touch LCD display; 2G Network GSM 850/900/1800/1900, 3G Network HSPA 850/1900; Wi-Fi networking with Wi-Fi Mobile Hotspot and tethering capabilities, GPS for navigation and location services; Dual SIM card slot, 4GB storage, Micro SD expansion to 32GB; GPRS, HTML Web Browser, Built-in Apps: Google Play, YouTube, Google+, Google Search, Google Maps, Google Navigation, Voice Memo, Notes; Dual camera, back-5-MP, front 2-MP, HD 720p recording, LED flash, Auto focus, Face detection, Image stabilization; Bluetooth 3.0 stereo music; FM Radio, MP3 Player, MP4 Player; Battery: Up to 6 hours of talk time, up to 360 hours of standby time, High Speed USB 2.0, 3.5mm Audio Jack 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.