More details about JXD S7800B:
http://www.jxdofficial.com/jxd-s7800b-7-inch-quad-core-game-console.html?options=cart

The pinacle of 2D action-shooting is coming back on Android!
Make your way through multiple battelfields and put an end to the
Rebel Army Leader General Morden's evil plans!!
Intense cooperative gameplay via the Bluetooth function and HDMI port connection to TV.
Will you be able to clear the hardest stages with your friends?