ASUS Transformer (T100TAF-B12-GR) with WiFi 10.1" Touchscreen Tablet PC Featuring Windows 8.1 Operating System - Gray 32GB onboard storage memory, additional memory via SD card slot USB 2.0 port, headphone/microphone combo jack, docking port Front webcam - Integrated speakers - Up to 8 hours of run time on a full charge.Before using, make sure the unit is fully charged for 24 hours. Digital compass, GPS, gyroscope, accelerometer, ambient light sensor Weighs 2.36 lbs; 10.75" x 0.62" x 6.97" dimensions