DRS Armor X7 7" Compact Rugged Tablet Pc - Military Grade - Full Windows 7 Professional Microsoft Windows 7 Professiona 802.11 n MIMO 12 Wireless LAN connectivity (WLAN), Bluetooth v2.0 + EDR (Class 2) Bluetooth Twin hot-swappable lithium ion battery packs (2 cells, 2950 mAHr each) 40GB Intel solid-state drive