Chess Clock Advanced Digital Chess Game Timer ABS Digital Display Professional International Chess Clock Blue

Function There are 42 timing rules in 8 categories including singlemultiple countdown reward time limit delay seconds and forward timing Settings Timing parameters can be changed for each timing ruleexcept positive timing Different timing parameters can be set on the left and right sides During the race the timing parameters of both sides can be changed Preset Rules Printed On The Back Easy to use 42 preset rules readytouse The default value can be changed and saved inside for repeated use Keep Parameters Power back on after power off you can keep the rules and parameters of the race before power off Large Seesaw Button Feel good quick response convenient control more suitable for fast chess Battery Powered DC 3V power supply two No 5 batteries are not included