Key benefits Durable plastic construction provides reliable performance for all chess games, from casual play to formal events. Multifunctional timer modes BASIC, DELAY, BONUS, and BYO YOMI support different formats and player preferences. Clear display and large buttons enable quick, accurate reading and smooth operation during fast or tense moments. Energysaving mechanism extends battery life and reduces replacement frequency, powered by 2 x AAA batteries (not included). Key attributes Material: plastic for lightweight, durable use Display: large screen designed for easy readability Controls: oversized buttons for efficient operation Power: requires 2 x AAA batteries; batteries not included Efficiency: energysaving feature to optimize battery life Compatibility: suitable for standard chess setups and varying formats Usage scenarios Club or tournament play: use BASIC, DELAY, or BONUS modes to enforce time control and maintain fair pacing. Training or coaching: practice with DELAY or BONUS to work on practicality and decision speed, or use BASIC for straightforward timing. Casual home games: enjoy simple timing with BASIC or explore BYO YOMI for variant play with friends or family.