High Quality Simple Stopwatch - high precision, 1/100 seconds accuracy; light weight, made in light duty plastic, only 1.4oz; Small in volume, easy to carry, stopwatch include lanyard, you can hand held it or round the neck. Perfect for sports training, competition, running, fitness, etc. Silent Function for No "BEEP" - stopwatch with silent feature, easy to change the mode between silent and normal, No "BEEP" Anymore. Tip: In Clock Mode, Press [RESET] and [SELECT] together, can turn off the "beep" hourly. Suit for testing, exam, experiment, speech, classroom and any need silent occasion. Backlight Function - Click [LIGHT] turn on light for few seconds, it help you for training on night, this function only could use in dark environment and at night. Tip: This function is not obvious during the day. Make It More Simple - digital stopwatch design simple, only have four functions: Count up, Count down, Clock, Alarm. Package included user manual in 5 languages, if you have any problems about how to set up, please contact us for customer service. Count up and Count down - The maximum timing for count up is long up to 29:59:59. The maximum timing for count down is long up to 29:59:59. In addition, the countdown can adjust the duration of the prompt sound, very useful for rest in fitness. Colour: green Product Includes: 1pc Size: 68*80*18 mm