DBHappy Pack of 2 Pieces Digital Hand Tally Counter Small Golf Sports Counter Electronic AddSubtract Manual Clicker

Battery included, Low Power Consumption, typical battery life >250 hours., Light weight, easy to carry, power consumption, work more stable., Can be used in ball games, swimming or running laps, people counting, goods counting., Turn on/off the sounds, press the "+"button for 5 seconds., Accident protect, three second hold on/off and reset switch.