1. Versatile Functionality: The 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 moves and time per countdown), and regular timing (recording playing time without determining a winner). 2. Additional Features: The digital chess timer includes features such as switching to regular timing after countdown, player selection for the starting move, move tracking, step count setting, adjustable sound options (audible or silent), power-off function, and memory function to minimize repetitive settings. 3. User Interface: The portable digital chess clock is designed with simplicity and logical functionality, making it easy to use for those unfamiliar with complex chess clock systems. Its straightforward interface and clear display provide a smooth experience for users of all levels. 4. Compatibility: This compact and portable stopwatch is suitable for Go, Chinese Chess, and International Chess. It can be used for competitions, training sessions, and recreational purposes. 5. Tournament Application: This multi-functional chess clock provides timing solutions for competitive events or chess matches, supporting accurate timing to meet competition requirements. Power Supply Method: One AA carbon battery. Note: Batteries are not included in the delivery. Color: Dark Blue Material: Plastic Package Contents: 1 x Chess Clock. Only the items listed in the package content are included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.