CHESS CLOCK: Professional digital timer with count up and countdown function, supports up to 10 hours, suitable for chess, Chinese chess, and other board games. ALARM FUNCTION: Built-in alarm alerts when time expires. Alarm can be turned on or off. Features easy setup and memory settings. LARGE HIGH DEFINITION DISPLAY: Equipped with a large HD display, vibrant colors, accurate timing, and clear visibility for easy reading. ECO-FRIENDLY DESIGN: Made with high-quality electronic components and an ABS plastic shell, designed to be durable and environmentally friendly. BATTERY: Requires 2 AAA batteries (not included). COLOR: Black MATERIAL: Plastic SIZE: 14 x 8.8 x 4.5 cm PACKAGE CONTENTS: 1 x Chess Clock Note: Other items not included. Lighting and screen differences may cause slight color variations between the image and the actual item. Measurement error allowed within +/- 1-3 cm.