①. Enhance your chess game with a chess clock, crafted for accuracy and convenience. This timer has 42 preset rules that allow you to customize your game. With an intuitive interface and quiet operation, you can focus on your strategy without distractions. ②. Key Features: Advanced Countdown Function: Enables multi-section countdown, positive time, and move delay. ③. Versatile Time Settings: Set different settings on the left and right sides and change them during the game for a smooth experience. ④. Display and Controls: Easily track the number of chess moves and mute the timer to avoid distractions. ⑤. Preset Rules: Choose from 42 preset rules to suit your playing style and offer a range of customization. ⑥. Construction: Made of plastic and metal. ⑦. Portability: Compact design and lightweight construction make it easy to take with you wherever you play. ⑧. Specifications: Material: Plastic + Metal; Battery: 2 * AA: 1.5V, 800mAh (Batteries not included); Item size: 161 * 100 * 62mm / 6.3 * 3.9 * 2.4in; Item weight: 245g / 8.6oz; Package size: 150 * 100 * 50mm / 5.9 * 3.9 * 2.0in; Package weight: 400g / 0.9lb. ⑨. Package includes: 1 * Chess Clock.