Microsoft surface1516 32 gb Windows RT 8.1, 10.6-Inch ClearType HD Display Quad-core NVIDIA Tegra 3 Up to 8 Hours of Battery Life, 2 GB RAM, 32 GB Storage Capacity (15 GB Available) Two 720p HD LifeCams, front and rear facing Wi-Fi (802.11a/b/g/n), Bluetooth 4.0 Technology, Ambient light sensor, Accelerometer, Gyroscope, Magnetometer, 31.5 W-h, up to 8 hours mixed activity, 7-15 days idle life Can update windows 11 U want use backup must change battery ( رقم الجوال يظهر عند الضغط على زر تواصل )