DESCRIPTION: Product Features: -6 Modes:Stopwatch,Time,Countdown Timer,Football stopwatch,Alarm,Metronome. -4 Button:LAP/SPLIT/RESET---RECALL---START/STOP---MODE,it's easy to operate. -Button with a touch micro-switch, feel comfortable and sensitive. -Perfect design, shock-proof and skid-proof,water resistant. -If it is not in use for a long time, it will automatically go into standby state. Specification: -Window size: 36x23mm/1.42x0.9in. -Product size: Approx 74x60x21.5mm/2.91x2.36x0.84 in. -Gross weight: Approx 72g/2.54 oz. Warm Warning: We put the battery in place at the time of production. If the screen is blinking or dimming, please replace the battery in time. We use one button battery: CR2032(included). Package Includes: 1 X Stopwatch. 1 X User Manual. 1 X Gift box package.