1. Multipurpose Design The 3in1 chess clock supports multiple timing modes including basic, rewards, delay, and positive timing. This provides flexibility to match different chess game scenarios and rules, helping players pace the game effectively. 2. Userfriendly Interface Large buttons offer a comfortable and responsive pressing feel, enabling easy and precise operation during play and reducing the risk of timing errors under pressure. 3. Sturdy and Portable Made of ABS plastic for durability, the clock is built to withstand regular use. Its compact size and portable design make it convenient to carry to chess tournaments and practice sessions. 4. Energyefficient An energysaving mechanism helps conserve battery power for longer usage. It requires 2 AAA batteries to operate. 5. Use scenarios In club or tournament games that require standard timing, delays, or other modes to fit traditional rules. During training sessions to reinforce fast, accurate decisions with rewards or positive timing. While traveling or practicing on the go, thanks to its compact, batterypowered design.