Very nice combination of Arduino UNO (Original) and plug-in expansion board is mounted on a chassis and the possible battery power supply (9V should obtain accordingly - not included). A Sketch (= Arduino program) for LED blinking on port 13 is already installed and can be regarded as evidence of the functioning of the United Nations - it flashes an LED on the UN Board (and the first sketch in the manual then also on the extension plug-in board). Very nice is included with a lot of resistors and cables to the set - should be enough for various constructions. The additional modules have been selecting meaningful and actually lacks only a display and / or a 7-segment display to the package to get you started round. Shields (= Arduino system boards) are not in - but in my opinion is playing with servos, multicolored LED, etc. more interesting than to immediately think of Ethernet or GSM modules.