Plastics construction provides durable, reliable performance for chess games, with long lasting use in practice, training, and competition. Key benefits Durable plastic build for everyday use in clubs, tournaments, and home play. Multi functional timer modes to fit different formats and player preferences: BASIC, DELAY, BONUS, and BYO YOMI. Clear display with a large screen and oversized buttons for easy reading and quick operation during fast paced games. Energy saving mechanism to extend battery life; requires 2 x AAA batteries (not included). What it does BASIC mode offers straightforward time control for standard games. DELAY mode adds a time delay before thinking time is consumed. BONUS mode provides additional thinking time as a bonus. BYO YOMI mode enables move by move timing to suit dynamic play styles. Use scenarios Tournament or rated game settings: select BASIC for simple timing or DELAY to manage pace and avoid excessive thinking time. Training and practice: use BONUS for practicing endgames or complex positions, or BYO YOMI to simulate move by move pressure. Teaching and group sessions: large display and easy to press buttons help students follow timing quickly and stay engaged during lessons. Power and performance Energy saving mechanism enhances battery life for longer sessions. Requires 2 x AAA batteries (not included) to operate.