Sturdy plastic construction that withstands frequent use and provides reliable performance during intense chess sessions. Multifunction timing modes include Basic, Delay, Bonus and BYO YOMI to meet different game formats and player preferences. Large screen with user friendly controls: clear display easy to read at a glance, with oversized buttons designed for quick access and efficient operation during play. Efficient battery usage: energy-saving feature extends battery life; requires 2 x AAA batteries (not included) for operation. 2-3 practical use scenarios: - Use in club or tournament play for various time controls such as blitz, rapid, or standard games. - Use during training sessions or coaching to demonstrate pacing and time management. - Use at home or practice games for quick setup and easy visibility during teaching or playing with others.