Model Number: C1-a Brand Name: IDWELL Key Specifications/Special Features: 4-inch 3G smart phone with WVGA resolution4-inch touch screen single-point (480*800)CPU: MTK6580 Quad-core, 1.3GHz frequencyOperating system: Android 5.1Network: 802.11 b/g/nRAM: 512MB + ROM: 4GBSIM card+ built-in 2G/3GWeb camera: 0.3MP front camera/rear 2.0MPBuilt-in battery: polymer battery 1400mAh, 4-10 hours working time