Mobile Broadband Generation:3G, SIM Card Slot Qty:Dual-SIM, Input Device:Multi-touch , capacitive, Technology:WCDMA (UMTS) / GSM, Operating System:Windows Phone OS 8.1, Band:WCDMA (UMTS) / GSM 850/900/1800/1900, Wireless Interface:IEEE 802.11, Bluetooth 4.0, Communication Features:Mobile Email client, Internet browser, Data Transmission:GPRS, EDGE, HSDPA, HSUPA, HSPA+, Connector Type:Micro-USB ¦ Headset jack - mini-phone 3.5mm, Type:Colour, Display Resolution:800 x 480 pixels, Diagonal Size:4", Sensor Resolution:2 Megapixel, RAM:1 GB, Internal Memory Capacity:8 GB, Supported Flash Memory Cards:microSD, Messaging Services:SMS, MMS, Supported Social Networks and Blogs:Yes, Included Accessories:Headset, power adapter, Personal Information Management:Calendar, synchronization with PC, calculator, reminder, alarm clock, Phone Functions:Speakerphone, call timer, conference call, flight mode, vibrating alert, Sensors:Accelerometer, ambient light sensor, proximity sensor, G-sensor, Dual SIM Card Capability:Yes, Clock Speed:1.2 GHz, Type:QUALCOMM MSM8210, Processor Core Qty:Dual-core, Focus Adjustment:Automatic, Sensor Resolution:5 Megapixel, Camera Light Source:LED light, Features:Video recording