He is literally a black rectangular phone with a silver casing surrounding his sides. On one side, he has two volume buttons and a ringer switch, and on his top is a power button. He has a large screen on his front which has a red glowing wallpaper with a pair of square-shaped sunglasses, eyebrows and mouth.
MePhone4S's attitude was harsh and savage, showing he enjoyed the death and suffering of contestants. He's a complete jerk!
(in secret, he loves Hello Kitty!)