Flexible and responsive buttons: The large buttons are designed to be easy to press and provide a satisfying pressing feel, enabling precise operation during chess games. ABS plastic housing: Built with durable ABS plastic to ensure long lasting performance and protection against wear and tear. Timing modes: Includes bonus and delayed modes. Portable and energy saving design: Compact and lightweight for easy transport to clubs, tournaments, or practice sessions, with an energy efficient design to conserve battery life. Use scenarios Tournament or club play: Quick and reliable access to time controls with durable construction supports long matches and frequent use. Training or coaching: Bonus and delayed modes for practice with varied time pressures to improve decision making and timing. Travel and teaching beginners: Lightweight, portable clock that fits easily into a bag, suitable for lessons and onthego games.