COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2 cm and weighs approximately 20g, making it compact and portable. It can be easily carried in a pocket for convenient use anytime, anywhere. A lanyard is included, allowing you to wear it around the neck or wrist for added convenience and security. DURABLE QUALITY: Constructed with a high-quality ABS plastic outer shell, this counter is resistant to wear and impact, ensuring long-term durability. It is powered by an included LR44 button battery, providing reliable operation for over 250 hours, minimizing the need for frequent battery replacements. EASY TO OPERATE: Simply press the on/off button to power the device. When turned on, the display shows "0". To count up, press the "+" button; to count down, press the "-" button. To reset the count to zero, press and hold the on/off button until the display reads "0". CLEAR AND ACCURATE: Equipped with a 4-digit LCD screen, this electronic counter displays numbers from 0 to 9999 (does not support negative numbers). Each press of the button updates the count clearly and accurately, helping prevent counting errors. WIDE APPLICATION: Suitable for various environments requiring accurate counting. Ideal for use in warehouses and docks for inventory tracking, at streets or stations for monitoring pedestrian or vehicle traffic, and during sports activities such as golf, football, swimming, running, and jump rope.