This digital clock is ideal for chess and various games that necessitate countdown, count up, bonus, and delay times. Its lightweight and compact design allows it to fit conveniently in most bags, making it portable for club or tournament events. Features: - Large flexible button for enhanced pressing experience. - Made from high-quality ABS plastic for durability. - Supports bonus and delay modes. - Energy-efficient portable design. Functions: - Basic: Set the fundamental time. - Bonus: Configure both basic and bonus time. - Delay: Set basic time, secondary reading times, and delay time. - Positive Timing: Set the basic time to 0 for an overall rationing system. Specifications: - Material: ABS - Color: Black / Yellow (Optional) - Battery: 2 * AAA battery (Not included) - Screen size: 103 * 23mm / 4.06 * 0.91in - Item size: 140 * 88 * 45mm / 5.51 * 3.46 * 1.77in - Item weight: 105g / 3.70ounce - Package size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97in - Package weight: 157g / 5.54ounce Packing List: 1 * Chess Clock