Multifunctional timer with four timing modes: BASIC, DELAY, BONUS, and BYO YOMI. It is suitable for chess and other board games, including Xiangqi (Chinese chess) and Go. Large clear display: a large screen provides easy readability so players can quickly check the remaining time without distraction. Efficient operation: large seesaw buttons offer a responsive, tactile press for fast, reliable control during play. Durable design: sturdy plastic construction built to withstand frequent use while maintaining performance. Compatibility and versatility: designed to support different rule sets and timing needs across chess, Xiangqi, and Go, making it a flexible choice for clubs, tournaments, and casual games. Use scenarios: tournament or club play: switch between BASIC, DELAY, BONUS, and BYO YOMI as required by different games and formats. home or casual games: quick setup and simple operation for family or friends without slowing down the match. coaching or training sessions: practice time management and pacing, including byoyomi style timing, under the coach's guidance.