Basic Digital Chess Timer with Bonus & Delay is a reliable game timer that is easy to program and use. This timer features both count up and count down modes and includes either bonus time (also know as increment time) or delay time. Easy to program and use Requires 1 - AA battery (included) The move indicator light, The button is lifted(the indicator light bright) Timer measurements: 5.4" x 3.4" x 1.8" (13.8 x 8.8 x 4.5cm) Timer Net Weight: 160grams Timer Colors: Black, Burgundy, Red, Yellow, Tan, White, Blue, Green Supports bonus/increment (Fischer) time up to 59 seconds per move. Supports delay time up to 59 seconds per move. Both count up and count down modes. Time, bonus/increment (Fischer) and delay times can be set different for each side of the timer if desired. Audible alarm (when time expires) can be turned on or off.