Backlight : LED Backlight clearly display screen information in weak light conditions . And a Plastic film on screen , protect led screen !<br> Multi-function : Stopwatch mode , time mode , countdown mode , and alarm .<br> Split recall memory : 2 lap memory to 39 hours and recall .<br> Alarm & Keep silent : It's to turn off volume and alarm clock .<br> Stopwatch is sed for sports and football matches , suitable for coaches , training , runners , adults and kids .<br> focus on high quality items , quality is our soul , all of products will give you the high quality stop watch .<br> Stopwatch Instruction TIPS :1 . How to turn on / off alarm ?-- Press the "M" button switch "Clock" mode to "Alarrm clock" mode , then press "S" button once , it will turn on or turn off alarm.2 . How many modes are there on this item ?-- Four modes : Clock , stopwatch , countdown , alarm clock.<br> Plastic film :Before useing stopwatch , the plastic film can be taken out .Or still put it on the screen , It doesn't make too much visual interference.<br> colour:Silver<br> Material:metal<br> size:74*60*15MM<br> Package Contents:<br> 1*Stopwatch with battery<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.