Product details Digit height: 4 inch Digital Color: red Functions: stopwatch, marathon timer, count up timer, countdown timer, normal clock, interval timer, FGB, Tabata Timer Display: 6 digit HH:MM:SS display Double sided: available Material: durable anti-shock aluminum alloy case matt acrylic non-glare lens Powered by AC adapter or rechargeable battery or external rechargeable battery, 12V car battery supply Waterproof rating: IP65 Operation IR remote control, RF wireless remote control, start/stop button control, synchronizing master and slave timer control Installation: ceiling/ stand on table/ tripod mounting/car mounting Product Functions Marathon timer: Count up from zero to max 99 hours 59 minutes 59 seconds. Marathon time display will restore and continue running if there is a sudden power outage. Clock :Optional 12-hour and 24 -hour (military time) display Count up timer: Custom set time to count up from, max count up to 99 hours 59 minutes 59 seconds Count down timer: Custom set time to count down from, ax count down from 99 hours 59 minutes 59 seconds Stopwatch timer ( MM:SS:MS display): Max count up to 99 minutes 59 seconds and 99 hundredths of a second Interval timer: Program workout time, rest time and repeating rounds, store custom setting programs Fight Gone Bad timer: Pre-programmed interval timer, 3 rounds of 5 x 1 minute workout and then 1 minute rest Tabata timer: Pre-programmed interval timer, 20 seconds workout and 10 seconds rest for 8 rounds