Product Description:Advanced Chess Clock with Multiple Timing ModesThis professional chess clock features a comprehensive set of timing rules, including BASIC, BONUS, DELAY, BYO-YOMI, and COUNT-UP. It automatically switches to a positive timing mode once the countdown ends.Key Features & Specifications: Flexible Time Settings: User-defined time can be set up to 9 hours, 59 minutes, and 59 seconds. Different timing parameters can be configured for each player and adjusted even during a game. Parameter Memory: The clock automatically saves all set parameters upon shutdown. Move Tracking: The step recording function allows you to review or edit up to 999 moves. Audio & Power Control: You can enable or disable voice prompts and turn the chess clock on or off as needed. Timing Mode Definitions: BASIC: Standard countdown timing mode. DELAY: Delay (or Fischer delay) timing mode. BONUS: Bonus (or Fischer increment) timing mode. BYO-YOMI: Traditional Japanese byo-yomi (period counting) timing mode for Go. Power: Operates on 2 x AA batteries (not included). Design: Sleek black housing made of durable ABS plastic.Package Includes:1 x Chess ClockImportant Notes: The package contains only the item listed above. Slight color variations may occur due to lighting and monitor differences. Please allow a slight measurement tolerance of +/- 1-3 cm.