CkeyiN Interval Timer, Best Digital Sports Stopwatch Countdown LCD Clock for Crossfit,Tabata,Yoga,Hilt,Cardio,MMA/Boxing,Kettlebell,Weight lifting,Running,Stretch,and Other Sports Trainings Ideal for Yoga , Boxing , weight lifting , running , Cross-fit training , Tabata training and other GYM interval training Alarm and vibrate, power off function.Equipped with secure belt clip.You can either set it to vibrate when the time is up, beep, or vibrate and beep 1/100 Second Split Timing, Measure time at an accuracy of one hundredth of a second. Use the split time feature to precisely measure multiple events Min size 655326.5mm. Require 1 AAA battery (1.5V).Good gift. Set interval times: 2-99 repeats,1-2 intervals,measure up to 99 minutes 59 seconds.Non-risk purchase, ONE YEAR MONEY BACK GUARANTEE, high-performance personal customer service.