Chess Clock Multifunctional Chess Clock Electronic Chess Timer Feature: Timing rules can be set in advance or modified by yourself It can automatically count the number of player moves and emit an automatic beep Commonly used in training and competitions of Chinese chess, chess, and Go With a lock switch to avoid mistakes caused by accidentally touching the key Simple operation, beautiful and durable. Parameter: Size: 16x10x6.2cm Weight: about 220g Material: ABS Power supply: 2xAA batteries (not included) Package include: 1 x Chess timer 1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin