[Easy to Use] --- The top button of the meter is used to turn on or off the meter. Use the plus button and minus button to count up to 0-9999, easy to operate. [Replaceable Battery] --- The battery cover is removable, and the battery power supply is AG13 button cell. When the battery runs out, you can purchase a battery to meet your needs, which is easy to replace. [Practical Tool] --- You can get 2 portable digital counters. Compared with traditional counters, electronic digital counters have the characteristics of light weight, easy to carry, low power consumption, and more stable work. [Humanized Design] --- The counter has voice prompt and can sound when counting. If you don't like the prompt sound, please press and hold the +/- button for 5 seconds to mute the sound. The counter comes with a black lanyard that you can wear around your neck or attach to your backpack for easier carrying. [Wide Application] --- Electronic digital counters can be used in many public places such as schools, laboratories, games, stadiums, practice activities, etc., and can also track golf shots, baseball fields, store traffic, etc. Features: The counter uses an LCD screen, which is more intuitive and convenient for statistics. Compared with traditional counters, portable electronic counters are lightweight, easy to carry, and more stable in work. It can be used in various occasions, such as ball games, swimming or running, people counting, product counting, etc. Specification: Color: Black Material: ABS Battery Specifications: AG13 Count Range: 0-9999 Package Contents: 2 x Digital Handheld Counter Instructions: Press the ON/OFF button, the device will display "0". When counting, please press the "+" or "-" button. If the number exceeds 9999, press the ON/OFF button for 5 seconds to reset. When the counter displays "0", press the ON/OFF button for 5 seconds to turn off the meter. Note: The +/- button colors are randomly distributed and may differ from images. The meter has a voice prompt to turn on/off the prompt sound. If you don't like the prompt sound, press and hold the +/- button for 5 seconds to turn off the sound. Note: The data is from manual measurement. Please allow 1-2 cm error. Due to differences between lighting and screen settings, there may be some color variation. Actual product may vary slightly.