Silent working condition: this referee stopwatch works mute during normal use time, gives you a quiet environment when using

Lagre LCD + precise function – Sports stopwatch can display minutes, seconds. Measure time to an accuracy of one hundredth of a second

Give a button battery: powered by 1 x AG13 battery (included, no need to purchase). The battery is replaceable

Stainless steel referee whistle with lanyard: sports stopwatch watch The whistle made of high-quality stainless steel material presents a crisp sound. And with a detachable yellow lanyard, you can release them, which is essential for running, training and other sports