The DGT North American chess clock was developed in cooperation with the United States Chess Federation for the US market, but later also released to the global market.
The fact that the clock does not add the delay time to the main time in its display is the only reason why it is not FIDE approved. According to FIDE rules and regulations, the total time available to a player should be shown on the display at all times. Apart from the delay option and its appearance, this clock is identical to the DGT 2010 chess clock.
The clock comes with a two-year guarantee. Batteries included.