Backlight : LED Backlight clearly display screen information in weak light conditions . And a Plastic film on screen , protect led screen Multi-function : Stopwatch mode , time mode , countdown mode , and alarm .Split recall memory : 2 lap memory to 39 hours and recall .Alarm Keep silent : Its to turn off volume and alarm clock .Stopwatch is sed for sports and football matches , suitable for coaches , training , runners , adults and kids .focus on high quality items , quality is our soul , all of products will give you the high quality stop watch .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 alarm2 . How many modes are there on this item -- Four modes : Clock , stopwatch , countdown , alarm clock.Plastic film :Before useing stopwatch , the plastic film can be taken out .Or still put it on the screen , It doesnt make too much visual interference.colour:SilverMaterial:metalsize:74*60*15MMPackage Contents:1*Stopwatch with batteryOnly the above package content, other products are not included.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.