FEATURES: BUILT-IN TIMER allows quarterback to focus on ball release time 85 DECIBEL BUZZER designed to be audible indoors and outdoors TELESCOPING TRIPOD BASE allows athlete to customize height from 15"-22.5" BALL CRADLE fits multiple football sizes Product DOES NOT include batteries. The timer requires (2) AA 1.5V batteries. EASY assembly WATER-RESISTANT timing hub COLLAPSIBLE TRIPOD for easy transport