Description It is a kind of professional chess timer, 3 operating modes design, reusable, which can be satisfied with many GO rules. Support step counting function, support up/counting up/countdown. Easy operation, quick dialing and setting of the rule. Suitable for Chinese chess, international chess and GO. You can try. Functions: Multifunctional, 3 modes of operation, which can be satisfied with many GO rules. Support step counting function, support up/counting up/countdown. Easy operation, quick dialing and setting of the rule and one button to start. With memory function, set once for repeated use. Equipped with alarm sound, you can open or close it according to your requirements. Suitable for Chinese chess, international chess and GO. Specifications: Name: Chess Competition Time Counter Model: YS-902 Material: ABS Black color Battery: 2 * AAA battery (included) Screen Size: 103*23mm/4,06*0,91inch Product Size: 140*88*45mm/5,51*3,46*1,77inch Item Weight: 105g / 3,70oz Package Weight: 157g / 5,54oz List of things to pack: 1 * Chess Clock