CAMERA: Built-in camera to take pictures and record video. We recommend you to keep the lens clean to obtain the best results when using this function.
3.
MENU: Press this button to show the menu.
4.
TRACKBALL: Move the trackball in any direction to position the marker on your desired element and press it to select.
5.
HOME: Press it to show the main desktop. Hold it for 2 seconds to display on screen the last 6 applications used.
6.
RETURN: Back to the previous menu.
7.
USB 2.0 Hi-Speed connector for data transfer and battery charge.