CHESS CLOCK: Professional digital timer with count up/count down, maximum up to 10 hours, available for Chinese chess, international chess and board games. HIGH DEFINITION DISPLAY: This chess clock has a high definition display, eye-catching colors, accurate, easy to read. ALARM FUNCTION: This chess clock an alarm clock when the time is up. You can turn on/off the alarm clock, easy setting, lightweight, memory setting. DURABLE ECO-FRIENDLY CHESS CLOCK: This chess clock is made of premium electronic components and ABS shell, is eco-friendly and durable.