iRulu V1 5.5" QHD Android 4.4 KitKat Smartphone MT6582 Quad core 1.3GHZ Real camera 8.0MP Dual camera Dual sim Card Cellphone iRulu V1 5.5" QHD Android 4.4 KitKat Smartphone MT6582 Quad core 1.3GHZ Real camera 8.0MP Dual camera Dual sim Card Cellphone DATA speed 21Mb/s 3G: WCDMA 850/1900/2100; GSM: 850/900/1800/1900 Unlocked smartphone: Nationwide AT&T: Cricket Wireless, Straight Talk, Net10, H20 Wireless, 420 Wireless, Black Wireless, Consumer Cellular, Pure TalkUSA, Red Pocket, Telcel America. T-Mobile: MetroPCS, Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel America, Walmart Family Mobile. MTK6582 Quad-core: 1.3GHz Cortex-A7 Processor, 1G RAM/8G ROM, Support TF card, expandable to 32GB Dual camera: Front 5.0MP Black 8.0MP convenient for you to capture wonderful moments, Also perfect for video chatting online 5.5inch large screen: QHD 960 x 540, perfect for you to play games or stream videoes 2350mAh Large Capacity Battery: No need to worry about the electricity Durable for you to listen to the music,stream videos...(almost 5 days stand-by) Unlocked cell phones are compatible with GSM carriers but are not compatible with CDMA Carriers.