Features: _x000D_1. Professional stopwatch timer for referee and match. _x000D_2. Multifunctional sports stopwatch, create your own miracle and record. _x000D_3. Suitable for many places like school, athletic meeting, gym, etc. _x000D_4. Wide use - can be used for various different activities like racing, running, swimming, etc. _x000D_5. Long lifespan - made of superior raw material, guarantee long service time. _x000D__x000D__x000D_Specifications: _x000D_Item: Stopwatch Timer _x000D_Material: Plastic _x000D_Color: Yellow, Black optional _x000D_Suitable: For racing, running, swimming, etc. _x000D_Weight: Approx 45g/1.6oz _x000D_Size: Approx 6*6*2cm/2.4*2.4*0.8inch _x000D__x000D__x000D_Package list: _x000D_1 * Stopwatch Timer _x000D__x000D__x000D_How to Use: _x000D_Stopwatch timer: In the normal walking state, press the M key to use the stopwatch to enter the timing state, if the stopwatch display is not zero, press the D key to stop timing, press the S key to reset to zero._x000D_Time, calendar and alarm display: In the normal walking state, press D to display the month, day and week, press S to display the alarm time._x000D_Time and calendar setting: in the normal walking state, press the M button 3 times to enter the time setting state. The seconds and day of the week display flash simultaneously. Press S to select the minute, hour, day, month, week, and second as the adjustment target. After the adjustment is completed, press the M key to return to the normal state. 1Professional stopwatch timer for referee and match. 2Multifunctional sports stopwatch, create your own miracle and record. 3Suitable for many places like school, athletic meeting, gym, etc. 4Wide use - can be used for various different activities like racing, running, swimming, etc. 5Long lifespan - made of superior raw material, guarantee long service time.