Abstract: A functional flip cover protective case having a physical keypad and a transparent viewing window for touch-based smart phone device is being disclosed. The functional flip cover protective case comprising an integral flip cover attached a protective case; the flip cover includes a built in physical keypad device and a transparent viewing window on the front side of the flip cover when the flip cover is in closed position; wherein the flip cover further comprising a sensor to detect opening and closing actions; wherein the protective case may comprising a data/power connector, and/or a Bluetooth device, and/or a NFC (Near Field Communication) device for corresponding between the physical keypad and the smart phone device; wherein upon closing the flip cover, the physical keypad will be activated to take over the input controls of the smart phone device.

Abstract: A functional flip cover protective case having a physical keypad and a transparent viewing window for touch-based smart phone device is being disclosed. The functional flip cover protective case comprising an integral flip cover attached a protective case; the flip cover includes a built in physical keypad device and a transparent viewing window on the front side of the flip cover when the flip cover is in closed position; wherein the flip cover further comprising a sensor to detect opening and closing actions; wherein the protective case may comprising a data/power connector, and/or a Bluetooth device, and/or a NFC (Near Field Communication) device for corresponding between the physical keypad and the smart phone device; wherein upon closing the flip cover, the physical keypad will be activated to take over the input controls of the smart phone device.