1、Multifunctional Timer: Chess clock timer is designed with a multifunctional timer suitable for both Go and Chess games. Ideal for chess enthusiasts individual use and professional chess training institutions for teaching and training purposes. 2、Advanced Features: With an extensive range of features, the Chess Clock Timer offers a forward timing of up to 9 hours, 59 minutes, and 59 seconds, and a customizable countdown of the same duration. Enhance your gameplay experience with built in reward and delay functions, which can be customized up to 59 seconds per move. It also includes a 3 second alarm signal upon a player's loss. 3、Functions: Built with a memory function, the clock retains the last used rule parameters even after being powered off. An inbuilt indicator light illuminates to signal the start of a player timing, accompanied by an arrowhead on the screen. You'll also find a convenient battery capacity indicator and a step counting function typically used in conventional chess matches, further providing flexibility for adjustments as needed. 4、Portable Design: Convenient to carry and suitable for a variety of occasions. Whether you're practicing at home or at a tournament, this chess clock is easy to pack up and bring with you anywhere. 5、Professional Digital Display: With a clear and simple to read digital display, this chess clock ensures accurate and non error game progression, letting you focus on strategic gameplay. 6、Reliable Material: Made of quality ABS material, it is robust reliable for long term use. Its user friendly features lets you customize the set time and delay function according to the competition rules, creating a seamless gaming experience. Item Type: Chess Timer Material: ABS Size: Approx. 13.8 x 8.8 x 4.5cm / 5.4 x 3.5 x 1.8in Battery: Approx. 1.5V AA Battery x 1 (battery not included) 1 x Chess Clock 1 x User Manual