1, and 10-meter distance from the wireless freedom of movement; 2, frequency conversion resolution can be realized button distinguish between the frequency switching (500 dpi - 1000dpi); 3, line by line from top to bottom can be realized rolling, 4, shortcut buttons can be used for browsing the Internet or application Procedures, easy on the toolbar "forward" and "back" function, 5, high-performance wearable Ottomans, sliding easily accessible.