This Bobby Fischer Chess Clock is a tribute to one of the world's best chess players. Powered by DGT, the most trusted brand in chess clocks for its precise technology and reliability. Each timer has a variety of settings that allow you to play with different methods of timing your game. It features 13 pre-set time controls and 10 custom time controls. Comes with a 2 year warranty. * DGT powered digital chess clock/timer * Clock measures 7.25 x 4 inches * Black and blue plastic hard shell casing * Requires and includes two AA batteries