Professional Portable Multifunctional 3-in-1 Chess Clock Digital Chess Timer Game Timer,

General Description This 3-in-1 multifunctional digital chess clock is ideal for chess and other games requiring countdown timers. Lightweight and compact, it easily fits in a bag, making it perfect for club events or tournaments. Technical Specifications Material: ABS Color: Black/Yellow (optional) Battery: 2 AAA batteries (included) Screen Size: 103 x 23 mm / 4.06 x 0.91 inches Item Size: 140 x 88 x 45 mm / 5.51 x 3.46 x 1.77 inches Item Weight: 105 g / 3.70 ounces Package Size: 150 x 100 x 50 mm / 5.91 x 3.94 x 1.97 inches Package Weight: 157 g / 5.54 ounces Operation Basic Mode: Set the basic time. Bonus mode: Set the base time and bonus time. Delay mode: Set the base time, second reading times, and time. Positive timing: Set the base time to 0 for the overall rationing system.