1. Versatile Functionality: timer offers a range of functions including basic time control, increment time control (adding seconds per move), delay time control (starting basic time after a delay), countdown time control (with set number of and time per countdown), and regular timing (just recording playing time without determining a winner). 2. Additional Features: The digital chess timer comes with useful features such as the ability to switch to regular timing after countdown, player selection for the starting move, move tracking, step count setting, adjustable sound (audible or silent), power-off function, and memory function, eliminating the need for repetitive settings. 3. User-Friendly and Intuitive Design: The portable digital chess clock is designed with simplicity and logical functionality in mind, making it easy to use even for those unfamiliar with complex chess clock systems. Its straightforward interface and clear display a hassle-free experience for users of all levels. 4. Compatibility with Multiple Chess Games: This compact and portable competition game stopwatch is suitable for all three major chess games - Go, Chinese Chess, and International Chess. It can be used for competitions, training sessions, and recreational purposes, catering to a wide range of gaming needs. 5. Multi-functional Tournament Timekeeper: Whether you require precise timing for competitive events or functions for your chess matches, this multi-functional chess clock is a must-have. It caters to your specific tournament needs, ensuring accurate timing and meeting all your competition requirements. Power Supply Method: One AA carbon battery. Note: Batteries are not included in delivery. Color: Dark Blue Material: plastic Package Contents: 1 x Chess Clock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.