The Two Technologies N4 Android device is a hand-held communication/computer device for use in commercial fleet operations where normal cell phones and mobile computer devices are prone to damage. The N4 has an ultra-rugged polycarbonate shell, is waterproof and heat-resistant. This device has a 5.5" diagonal high-resolution display, Android version 4.3, a 70-key backlit keypad and 16GB of internal memory. The N4 offers a hot-swappable battery, optional three-channel magnetic stripe reader and an 8MP color camera. The N4 incorporates the Samsung Galaxy Note series of smart-phones, is rugged to MIL-STD 810 G and operating temperatures of MIL-STD 810 F.