Features: Very easy to program menus. Highly accurate clock. Clock can be used for nearly every competitive two-player board game like Scrabble, Shogi, and Go. Low power consumption. Very strong plastic enclosure to protect your clock. Affordable price. Batteries not included With timing, timing, and delay of each reward each 4 Clock rules. The left and right sides can set different basic time and auxiliary parameters. During the game, you can modify the timing parameters of each other. Shutdown and then boot, to maintain the final use of the rules before the shutdown parameters. Descriptions: They are very easy to program and easy to use. Our clocks use modern LED technology with eye-catching colors. These clocks were designed and engineered by avid chess players, but the clocks can be used for nearly every competitive two-player board game. Specifications: Material: Plastic Clock Type: Digital Positive timing, max 10 hours Presettable countdown timer, max 10 hours Alarm function. Battery Type: 1 x AAbattery (1.5V) Package includes: 1 X Chess clock