Features. 1. This game timer is made of plastic, light and portable, powered by two AA batteries, low power consumption and long usage time, no need to worry too much about the power. 2. 2. The multi-functional chess clock can be set with different timing parameters for both sides, and the timing parameters for both sides can be modified even during the game, bringing more versatility to playing chess games. 3. The professional game timer can retain the rules and parameters of the game until it is switched off. 4. The game timer is versatile and suitable for various game competitions, such as Chinese chess, chess, checkers, etc. A perfect gift for chess game lovers Functions. 1. Countdown function 2. Timer function 3. Showing the number of steps 4. Add seconds 5. Time limit function 6. Mute function 7. Second reading function Product Specifications. Material: ABS Product size: 18.2x10x6.3cm/7.1x3.9x2.4in. Screen size: 140 X 30mm Packaging: Colour box Packaging information. 1 * Chess clock 1 * Instruction manual Warm Tips. 1.Manual measurement, please allow a slight error in size. 2. Hassle-free purchase: if you have any questions, please feel free to contact us. 3. The chess clock is powered by two AA batteries, we do not provide batteries, please buy them yourself. 4.Special maintenance. The chess clock should avoid contact with corrosive substances and avoid exposure to sunlight, rain, water drops and proximity to strong magnetic fields.