1、Multiple Timing Rules: This chess clock is equipped with 7 timing functions such as single multiple countdown, bonus, move limit, time limit, time delay, and second reading, and 38 timing rules with preset parameters. It meets the needs of different chess games and allows you to freely choose the appropriate timing rules according to the actual situation. 2、Intelligent Preservation: With F parameter saving mode and 00 parameter customisation mode, you can permanently save the last use of the parameters. No need to reset the parameters every time, convenient and quick, so that you can concentrate on the game without having to worry about parameter settings. 3、Flexible Operating: During the game, you can change the timing parameters of both sides at any time, view and change the number of moves taken, and at the same time, different timing parameters can be set for the left and right sides. This allows you to make flexible adjustments according to the needs of the players and the match situation, enhancing the match experience. 4、Versatile: In addition to the accurate timing function, it also has a variety of timing functions for Weiqi and chess tournaments. It is not only suitable for professional games, but also for individual use at home and for chess teaching and training. 5、Retro: The clock timer combines accurate timekeeping with a beautiful vintage aesthetic design that pays respect to the simple era. This vintage chess clock timer is both practical and decorative, adding a sense of history to your chess game setup. Item Type: Multifunction Chess Clock Material: ABS Size: Approx. 16 x 10 x 6cm / 6.3 x 3.94 x 2.36in Battery Type: AA Battery x2 (not included) 1 x Multifunction Chess Clock 1 x Instruction Manual